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✏️ Editing: exim.conf

#!!# cPanel Exim 4 Config

hostlist loopback = <; @[]; 127.0.0.0/8 ; 0.0.0.0 ; ::1 ; 0000:0000:0000:0000:0000:ffff:7f00:0000/8

hostlist senderverifybypass_hosts = net-iplsearch;/etc/senderverifybypasshosts

hostlist skipsmtpcheck_hosts = net-iplsearch;/etc/skipsmtpcheckhosts

hostlist spammeripblocks = net-iplsearch;/etc/spammeripblocks

hostlist blocked_incoming_email_country_ips = ${if exists{/etc/blocked_incoming_email_country_ips} {net-iplsearch;/etc/blocked_incoming_email_country_ips} {} }

hostlist backupmx_hosts = lsearch;/etc/backupmxhosts

hostlist trustedmailhosts = lsearch;/etc/trustedmailhosts

hostlist recent_authed_mail_ips = net-iplsearch;/etc/recent_authed_mail_ips

hostlist neighbor_netblocks = net-iplsearch;/etc/neighbor_netblocks

hostlist greylist_trusted_netblocks = net-iplsearch;/etc/greylist_trusted_netblocks

hostlist greylist_common_mail_providers = net-iplsearch;/etc/greylist_common_mail_providers

hostlist cpanel_mail_netblocks = net-iplsearch;/etc/cpanel_mail_netblocks

hostlist recent_recipient_mail_server_ips = net-iplsearch;/etc/recent_recipient_mail_server_ips

domainlist user_domains = ${if exists{/etc/userdomains} {lsearch;/etc/userdomains} fail}

domainlist local_domains = lsearch;/etc/localdomains

domainlist secondarymx_domains = lsearch;/etc/secondarymx

domainlist relay_domains = +local_domains : +secondarymx_domains

domainlist blocked_domains = wildlsearch;/etc/blocked_incoming_email_domains

domainlist manualmx_domains = ${if exists {/etc/manualmx} {lsearch;/etc/manualmx} {} }

localpartlist path_safe_localparts = \N^\.*[^./][^/]*$\N

smtp_accept_queue_per_connection = 30

remote_max_parallel = 10

smtp_receive_timeout = 165s

ignore_bounce_errors_after = 1d

rfc1413_query_timeout = 0s

timeout_frozen_after = 5d

auto_thaw = 7d

callout_domain_negative_expire = 1h

callout_negative_expire = 1h

acl_not_smtp = acl_not_smtp

acl_not_smtp_mime = acl_not_smtp_mime

acl_smtp_connect = acl_smtp_connect

acl_smtp_data = acl_smtp_data

acl_smtp_helo = acl_smtp_helo

acl_smtp_mail = acl_smtp_mail

acl_smtp_mime = acl_smtp_mime

acl_smtp_quit = acl_smtp_quit

acl_smtp_notquit = acl_smtp_notquit

acl_smtp_rcpt = acl_smtp_rcpt

acl_smtp_dkim = acl_smtp_dkim

message_body_newlines = true

check_rfc2047_length = false

keep_environment = X-SOURCE : X-SOURCE-ARGS : X-SOURCE-DIR

add_environment = PATH=/usr/local/sbin::/usr/local/bin::/sbin::/bin::/usr/sbin::/usr/bin::/sbin::/bin

chunking_advertise_hosts = 198.51.100.1

deliver_queue_load_max = 18

queue_only_load = 36

daemon_smtp_ports = 25 : 465 : 587

tls_on_connect_ports = 465

system_filter_user = cpaneleximfilter

system_filter_group = cpaneleximfilter

smtputf8_advertise_hosts = :

openssl_options = +no_sslv2 +no_sslv3 +no_tlsv1 +no_tlsv1_1

tls_require_ciphers = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384

timezone = UTC

spamd_address = 127.0.0.1 783 retry=30s tmo=3m

tls_certificate = ${if and \
    { \
        {gt{$tls_in_sni}{}} \
        {!match{$tls_in_sni}{/}} \
    } \
    {${if exists {/var/cpanel/ssl/domain_tls/$tls_in_sni/combined} \
        {/var/cpanel/ssl/domain_tls/$tls_in_sni/combined} \
        {${if exists {${sg{/var/cpanel/ssl/domain_tls/$tls_in_sni/combined}{(.+/)[^.]+(.+/combined)}{\$1*\$2}}} \
            {${sg{/var/cpanel/ssl/domain_tls/$tls_in_sni/combined}{(.+/)[^.]+(.+/combined)}{\$1*\$2}}} \
            {/etc/exim.crt} \
        }} \
    }} \
    {/etc/exim.crt} \
}

tls_privatekey = ${if and \
    { \
        {gt{$tls_in_sni}{}} \
        {!match{$tls_in_sni}{/}} \
    } \
    {${if exists {/var/cpanel/ssl/domain_tls/$tls_in_sni/combined} \
        {/var/cpanel/ssl/domain_tls/$tls_in_sni/combined} \
        {${if exists {${sg{/var/cpanel/ssl/domain_tls/$tls_in_sni/combined}{(.+/)[^.]+(.+/combined)}{\$1*\$2}}} \
            {${sg{/var/cpanel/ssl/domain_tls/$tls_in_sni/combined}{(.+/)[^.]+(.+/combined)}{\$1*\$2}}} \
            {/etc/exim.key} \
        }} \
    }} \
    {/etc/exim.key} \
}

# +incoming_port, +smtp_connection, +all_parents are needed for cPanel email tracking.
# +retry_defer, +subject, +arguments, +received_recipients are suggested settings that may be disabled.
log_selector = +incoming_port +smtp_connection +all_parents +retry_defer +subject +arguments +received_recipients

system_filter = /etc/cpanel_exim_system_filter

#!!# These options specify the Access Control Lists (ACLs) that
#!!# are used for incoming SMTP messages - after the RCPT and DATA
#!!# commands, respectively.

#!!# This setting defines a named domain list called
#!!# local_domains, created from the old options that
#!!# referred to local domains. It will be referenced
#!!# later on by the syntax "+local_domains".
#!!# Other domain and host lists may follow.

addresslist secondarymx = *@partial-lsearch;/etc/secondarymx

######################################################################
#                  Runtime configuration file for Exim               #
######################################################################

# This is a default configuration file which will operate correctly in
# uncomplicated installations. Please see the manual for a complete list
# of all the runtime configuration options that can be included in a
# configuration file. There are many more than are mentioned here. The
# manual is in the file doc/spec.txt in the Exim distribution as a plain
# ASCII file. Other formats (PostScript, Texinfo, HTML) are available from
# the Exim ftp sites. The manual is also online via the Exim web sites.

# This file is divided into several parts, all but the last of which are
# terminated by a line containing the word "end". The parts must appear
# in the correct order, and all must be present (even if some of them are
# in fact empty). Blank lines, and lines starting with # are ignored.

######################################################################
#                    MAIN CONFIGURATION SETTINGS                     #
######################################################################

perl_startup = do '/etc/exim.pl'

#dns_retry = 1
#dns_retrans = 1s

# Specify your host's canonical name here. This should normally be the fully
# qualified "official" name of your host. If this option is not set, the
# uname() function is called to obtain the name.

smtp_banner = "${primary_hostname} ESMTP Exim ${version_number} \
\#${compile_number} ${tod_full} \n\
    We do not authorize the use of this system to transport unsolicited, \n\
    and/or bulk e-mail."

#nobody as the sender seems to annoy people
untrusted_set_sender = *
local_from_check = false

split_spool_directory = yes

smtp_connect_backlog = 50
smtp_accept_max = 100

# primary_hostname =

# Specify the domain you want to be added to all unqualified addresses
# here. An unqualified address is one that does not contain an "@" character
# followed by a domain. For example, "caesar@rome.ex" is a fully qualified
# address, but the string "caesar" (i.e. just a login name) is an unqualified
# email address. Unqualified addresses are accepted only from local callers by
# default. See the receiver_unqualified_{hosts,nets} options if you want
# to permit unqualified addresses from remote sources. If this option is
# not set, the primary_hostname value is used for qualification.

# qualify_domain =

# If you want unqualified recipient addresses to be qualified with a different
# domain to unqualified sender addresses, specify the recipient domain here.
# If this option is not set, the qualify_domain value is used.

# qualify_recipient =

# Specify your local domains as a colon-separated list here. If this option
# is not set (i.e. not mentioned in the configuration file), the
# qualify_recipient value is used as the only local domain. If you do not want
# to do any local deliveries, uncomment the following line, but do not supply
# any data for it. This sets local_domains to an empty string, which is not
# the same as not mentioning it at all. An empty string specifies that there
# are no local domains; not setting it at all causes the default value (the
# setting of qualify_recipient) to be used.

#!!# message_filter renamed system_filter
message_body_visible = 5000

# Specify a set of options to control the behavior of OpenSSL. The default is to
# disable SSLv2 and SSLv3 due to weaknesses in these protocols.

# If you want to accept mail addressed to your host's literal IP address, for
# example, mail addressed to "user@[111.111.111.111]", then uncomment the
# following line, or supply the literal domain(s) as part of "local_domains"
# above.

# local_domains_include_host_literals

# No local deliveries will ever be run under the uids of these users (a colon-
# separated list). An attempt to do so gets changed so that it runs under the
# uid of "nobody" instead. This is a paranoic safety catch. Note the default
# setting means you cannot deliver mail addressed to root as if it were a
# normal user. This isn't usually a problem, as most sites have an alias for
# root that redirects such mail to a human administrator.

never_users = root

# The use of your host as a mail relay by any host, including the local host
# calling its own SMTP port, is locked out by default. If you want to permit
# relaying from the local host, you should set
#
# host_accept_relay = localhost
#
# If you want to permit relaying through your host from certain hosts or IP
# networks, you need to set the option appropriately, for example
#
#
#
# If you are an MX backup or gateway of some kind for some domains, you must
# set relay_domains to match those domains. This will allow any host to
# relay through your host to those domains.
#
# See the section of the manual entitled "Control of relaying" for more
# information.

# The setting below causes Exim to do a reverse DNS lookup on all incoming
# IP calls, in order to get the true host name. If you feel this is too
# expensive, you can specify the networks for which a lookup is done, or
# remove the setting entirely.

#host_lookup = 0.0.0.0/0

# By default, Exim expects all envelope addresses to be fully qualified, that
# is, they must contain both a local part and a domain. If you want to accept
# unqualified addresses (just a local part) from certain hosts, you can specify
# these hosts by setting one or both of
#
# receiver_unqualified_hosts =
# sender_unqualified_hosts =
#
# to control sender and receiver addresses, respectively. When this is done,
# unqualified addresses are qualified using the settings of qualify_domain
# and/or qualify_recipient (see above).

# Exim contains support for the Realtime Blocking List (RBL) that is being
# maintained as part of the DNS. See http://maps.vix.com/rbl/ for background.
# Uncommenting the first line below will make Exim reject mail from any
# host whose IP address is blacklisted in the RBL at maps.vix.com. Some
# others have followed the RBL lead and have produced other lists: DUL is
# a list of dial-up addresses, and ORBS is a list of open relay systems. The
# second line below checks all three lists.

# rbl_domains = rbl.maps.vix.com
# rbl_domains = rbl.maps.vix.com

# If you want Exim to support the "percent hack" for all your local domains,
# uncomment the following line. This is the feature by which mail addressed
# to x%y@z (where z is one of your local domains) is locally rerouted to
# x@y and sent on. Otherwise x%y is treated as an ordinary local part.

# percent_hack_domains = *

#sender_host_accept = +include_unknown:*
#sender_host_reject = +include_unknown:lsearch*;/etc/spammers

tls_advertise_hosts = *

helo_accept_junk_hosts = *

smtp_enforce_sync = false

#!!#######################################################!!#
#!!# This new section of the configuration contains ACLs #!!#
#!!# (Access Control Lists) derived from the Exim 3      #!!#
#!!# policy control options.                             #!!#
#!!#######################################################!!#

#!!# These ACLs are crudely constructed from Exim 3 options.
#!!# They are almost certainly not optimal. You should study
#!!# them and rewrite as necessary.

begin acl

########################################################################################
# DO NOT ALTER THIS BLOCK
########################################################################################
#
# cPanel Default ACL Template Version: 118.003
# Template: universal.dist
#
########################################################################################
# DO NOT ALTER THIS BLOCK
########################################################################################

acl_not_smtp:

#BEGIN ACL-OUTGOING-NOTSMTP-CHECKALL-BLOCK
# BEGIN INSERT resolve_vhost_owner
warn
        condition   = ${if eq{$originator_uid}{${perl{user2uid}{nobody}}}{1}{0}}
        set acl_c_vhost_owner = ${perl{resolve_vhost_owner}}

# END INSERT resolve_vhost_owner
# BEGIN INSERT end_default_outgoing_notsmtp_checkall
	accept

# END INSERT end_default_outgoing_notsmtp_checkall

#END ACL-OUTGOING-NOTSMTP-CHECKALL-BLOCK

#BEGIN ACL-NOT-SMTP-BLOCK

#END ACL-NOT-SMTP-BLOCK

acl_not_smtp_mime:

#BEGIN ACL-NOT-SMTP-MIME-BLOCK
# BEGIN INSERT disallowed_filenames_bl
# Reject inbound mail with potentially dangerous attachments
# Obfuscation of file names using parameter value continuation evades other filters, but not this one

deny
  log_message = DENY: disallowed \"$mime_filename\"
  condition = ${if match \
  {${lc:$mime_filename}} \
  {[.](ad[ep]|ba[st]|chm|cmd|com|cpl|crt|eml|exe|hlp|hta|in[fs]|isp|jse?|lnk|md[be]|ms[cipt]|pcd|pif|reg|scr|sct|shs|url|vb[se]|ws[fhc])\$}}
  message = Attached file '$mime_filename' has disallowed extension.

# END INSERT disallowed_filenames_bl

#END ACL-NOT-SMTP-MIME-BLOCK

acl_not_smtp_start:

#BEGIN ACL-NOT-SMTP-START-BLOCK

#END ACL-NOT-SMTP-START-BLOCK

acl_smtp_auth:

#BEGIN ACL-SMTP-AUTH-BLOCK

#END ACL-SMTP-AUTH-BLOCK

acl_smtp_connect:

#BEGIN ACL-CONNECT-BLOCK
# BEGIN INSERT blockedcountryips

drop
    message = Your country is not allowed to connect to this server.
    log_message = Country is banned
    hosts = +blocked_incoming_email_country_ips

# END INSERT blockedcountryips
# BEGIN INSERT delay_unknown_hosts

warn
    !hosts = : +loopback : +neighbor_netblocks : +trustedmailhosts : +recent_authed_mail_ips : +backupmx_hosts : +skipsmtpcheck_hosts : +senderverifybypass_hosts : +greylist_trusted_netblocks : +cpanel_mail_netblocks
    #only rate limit port 25
    condition = ${if eq {$received_port}{25}{yes}{no}}
    delay = 20s

# END INSERT delay_unknown_hosts
# BEGIN INSERT ratelimit

accept
        hosts = : +loopback : +recent_authed_mail_ips : +backupmx_hosts

accept
        hosts = +trustedmailhosts

accept
        condition = ${if match_ip{$sender_host_address}{net-iplsearch;/etc/trustedmailhosts}{1}{0}}

defer
        #only rate limit port 25
        condition = ${if eq {$received_port}{25}{yes}{no}}
        message = The server has reached its limit for processing requests from your host.  Please try again later.
        log_message = "Host is ratelimited ($sender_rate/$sender_rate_period max:$sender_rate_limit)"
        ratelimit = 1.2 / 1h / strict / per_conn / noupdate

# END INSERT ratelimit
# BEGIN INSERT slow_fail_block
   warn
        #only rate limit port 25
        condition = ${if eq {$received_port}{25}{yes}{no}}
        # host had a success in the last hour
        ratelimit = 1 / 1h / noupdate / per_conn / slow_fail_accept_$sender_host_address
        set acl_m4 = 1

defer
        #only rate limit port 25
        condition = ${if eq {$received_port}{25}{yes}{no}}
        condition = ${if eq {${acl_m4}}{1}{0}{1}}
        log_message = "Host is ratelimited due to multiple failure only connections ($sender_rate/$sender_rate_period max:$sender_rate_limit)"
        ratelimit = 5 / 1h / noupdate / per_conn / slow_fail_block_$sender_host_address

# END INSERT slow_fail_block
# BEGIN INSERT spammerlist

drop
    message = Your host is not allowed to connect to this server.
    log_message = Host is banned
    !hosts = : +skipsmtpcheck_hosts : +trustedmailhosts
    hosts = +spammeripblocks

# END INSERT spammerlist

#END ACL-CONNECT-BLOCK

#BEGIN ACL-CONNECT-POST-BLOCK
# BEGIN INSERT default_connect_post

# do not change the comment in the line below, it is required for /usr/local/cpanel/bin/check_exim_config
#acl_smtp_notquit is required for this to work (exim 4.68)
    accept

# END INSERT default_connect_post

#END ACL-CONNECT-POST-BLOCK

acl_smtp_data:

# exiscan only

#BEGIN ACL-OUTGOING-SMTP-CHECKALL-BLOCK

#END ACL-OUTGOING-SMTP-CHECKALL-BLOCK

#BEGIN ACL-CHECK-MESSAGE-PRE-BLOCK
# BEGIN INSERT default_check_message_pre
#
#  Enabling this will make the server non-rfc compliant
#  require verify = header_sender
#

accept  hosts = : +loopback : +recent_authed_mail_ips : +backupmx_hosts

accept
            authenticated = *
            hosts = *

accept
            condition = ${extract \
    {size} \
    {${stat:/etc/trustedmailhosts}} \
}
            hosts = +trustedmailhosts

accept
            condition = ${extract \
    {size} \
    {${stat:/etc/trustedmailhosts}} \
}
            condition = ${if match_ip{$sender_host_address}{net-iplsearch;/etc/trustedmailhosts}{1}{0}}

# END INSERT default_check_message_pre

#END ACL-CHECK-MESSAGE-PRE-BLOCK

#BEGIN ACL-PRE-SPAM-SCAN
# BEGIN INSERT mailproviders
# Research in Motion - Blackberry white list
 accept
     condition = ${if exists {/etc/mailproviders/rim/ips}{${if match_ip{$sender_host_address}{iplsearch;/etc/mailproviders/rim/ips}{1}{0}}}{0}}

# END INSERT mailproviders

#END ACL-PRE-SPAM-SCAN

#BEGIN ACL-SPAM-SCAN-BLOCK
# BEGIN INSERT default_spam_scan

warn
     # Remove spam headers from outside sources
     condition = ${perl{spamd_is_available}}
     !hosts = +skipsmtpcheck_hosts
     remove_header  = x-spam-subject : x-spam-status : x-spam-score : x-spam-bar : x-spam-report : x-spam-flag : x-ham-report

warn
    condition = ${perl{spamd_is_available}}
    condition = ${if eq {${acl_m0}}{1}{1}{0}}
    spam =  ${acl_m1}/defer_ok
    # Always make sure cPanel support mail can get through
    !hosts = : +trustedmailhosts : +cpanel_mail_netblocks
    log_message = "SpamAssassin as ${acl_m1} detected message as spam ($spam_score)"
    add_header = X-Spam-Subject: ***SPAM*** $rh_subject
    add_header = X-Spam-Status: Yes, score=$spam_score
    add_header = X-Spam-Score: $spam_score_int
    add_header = X-Spam-Bar: $spam_bar
    add_header = X-Spam-Report: ${sg{${from_utf8:${sg{$spam_report}{\N\n \n\N}{\n}}}}{[[:^ascii:]]}{_}}
    add_header = X-Spam-Flag: YES
    set acl_m2 = 1

warn
      condition = ${perl{spamd_is_available}}
      condition =  ${if eq {$spam_score_int}{}{0}{${if <= {${spam_score_int}}{8000}{${if >= {${spam_score_int}}{50}{${perl{store_spam}{$sender_host_address}{$spam_score}}}{0}}}{0}}}}

warn
  condition = ${perl{spamd_is_available}}
  condition = ${if eq {${acl_m0}}{1}{${if eq {${acl_m2}}{1}{0}{1}}}{0}}
  add_header = X-Spam-Status: No, score=$spam_score
  add_header = X-Spam-Score: $spam_score_int
  add_header = X-Spam-Bar: $spam_bar
  add_header = X-Ham-Report: ${sg{${from_utf8:${sg{$spam_report}{\N\n \n\N}{\n}}}}{[[:^ascii:]]}{_}}
  add_header = X-Spam-Flag: NO
  log_message = "SpamAssassin as ${acl_m1} detected message as NOT spam ($spam_score)"

# END INSERT default_spam_scan

#END ACL-SPAM-SCAN-BLOCK

# exiscan only

#BEGIN ACL-RATELIMIT-SPAM-BLOCK

#END ACL-RATELIMIT-SPAM-BLOCK

#BEGIN ACL-SPAM-BLOCK

#END ACL-SPAM-BLOCK

#BEGIN ACL-CHECK-MESSAGE-POST-BLOCK
# BEGIN INSERT default_check_message_post

# END INSERT default_check_message_post

#END ACL-CHECK-MESSAGE-POST-BLOCK

acl_smtp_etrn:

#BEGIN ACL-SMTP-ETRN-BLOCK

#END ACL-SMTP-ETRN-BLOCK

acl_smtp_helo:

#BEGIN ACL-SMTP-HELO-BLOCK

#END ACL-SMTP-HELO-BLOCK

#BEGIN ACL-SMTP-HELO-POST-BLOCK
# BEGIN INSERT default_smtp_helo

# END INSERT default_smtp_helo

#END ACL-SMTP-HELO-POST-BLOCK

acl_smtp_mail:

#BEGIN ACL-TEMPORARY-DOMAINS-OUT-BLOCK
# BEGIN INSERT disable_sending_from_temp_domains
# Don't allow sending mail from temporary domains

deny
    condition = ${if eq{${perl{is_temp_domain}{$sender_address_domain}}}{1}{true}{false}}
    message = "cPanel does not allow outgoing mail from temporary domains."

# END INSERT disable_sending_from_temp_domains

#END ACL-TEMPORARY-DOMAINS-OUT-BLOCK

#BEGIN ACL-MAIL-PRE-BLOCK
# BEGIN INSERT default_mail_pre

# ignore authenticated hosts
    accept
        authenticated = *

warn
        condition = ${if match_ip{$sender_host_address}{+loopback}{${perl{identify_local_connection}{$sender_host_address}{$sender_host_port}{$received_ip_address}{$received_port}{1}}}{0}}
        set acl_c_authenticated_local_user = ${perl{get_identified_local_connection_user}}

accept
        hosts = : +loopback : +recent_authed_mail_ips : +backupmx_hosts

# END INSERT default_mail_pre

#END ACL-MAIL-PRE-BLOCK

#BEGIN ACL-MAIL-BLOCK
# BEGIN INSERT requirehelo

deny
    condition = ${if eq{$sender_helo_name}{}}
    message   = HELO required before MAIL

# END INSERT requirehelo
# BEGIN INSERT requirehelonoforge

drop
    # if ($sender_helo_name eq $primary_hostname) {
    #      if (defined $interface_address) {
    #           return is_loopback($interface_address) ? 0 : 1;  #ok from localhost
    #      } else {
    #            return 0; #exim -bs
    #      }
    # } else {
    #      return 0;
    # }
    condition = ${if eq{${lc:$sender_helo_name}}{${lc:$primary_hostname}}{${if def:interface_address {${if match_ip{$interface_address}{+loopback}{0}{1}}}{0}}}{0}}
    message   = "REJECTED - Bad HELO - Host impersonating [$sender_helo_name]"

drop
    condition = ${if eq{[$interface_address]}{$sender_helo_name}}
    message   = "REJECTED - Interface: $interface_address is _my_ address"

# END INSERT requirehelonoforge
# BEGIN INSERT requirehelosyntax

drop
    condition   = ${if isip{$sender_helo_name}}
    message     = Access denied - Invalid HELO name (See RFC2821 4.1.3)

drop
    # Required because "[IPv6:<address>]" will have no .s
    condition   = ${if match{$sender_helo_name}{\N^\[\N}{no}{yes}}
    condition   = ${if match{$sender_helo_name}{\N\.\N}{no}{yes}}
    message     = Access denied - Invalid HELO name (See RFC2821 4.1.1.1)

drop
    condition   = ${if match{$sender_helo_name}{\N\.$\N}}
    message     = Access denied - Invalid HELO name (See RFC2821 4.1.1.1)

drop
    condition   = ${if match{$sender_helo_name}{\N\.\.\N}}
    message     = Access denied - Invalid HELO name (See RFC2821 4.1.1.1)

# END INSERT requirehelosyntax

#END ACL-MAIL-BLOCK

#BEGIN ACL-MAIL-POST-BLOCK
# BEGIN INSERT default_mail_post

# END INSERT default_mail_post

#END ACL-MAIL-POST-BLOCK

acl_smtp_mailauth:

#BEGIN ACL-SMTP-MAILAUTH-BLOCK

#END ACL-SMTP-MAILAUTH-BLOCK

acl_smtp_mime:

#BEGIN ACL-SMTP-MIME-BLOCK
# BEGIN INSERT disallowed_filenames_bl
# Reject inbound mail with potentially dangerous attachments
# Obfuscation of file names using parameter value continuation evades other filters, but not this one

# END INSERT disallowed_filenames_bl

#END ACL-SMTP-MIME-BLOCK

acl_smtp_notquit:

#BEGIN ACL-NOTQUIT-BLOCK
# BEGIN INSERT ratelimit

# ignore authenticated hosts
accept authenticated = *

accept hosts = : +recent_authed_mail_ips : +loopback : +backupmx_hosts

warn
    #only rate limit port 25
    condition = ${if eq {$received_port}{25}{yes}{no}}
    condition = ${if match {$smtp_notquit_reason}{command}{yes}{no}}
    log_message = "Connection Ratelimit - $sender_fullhost because of notquit: $smtp_notquit_reason ($sender_rate/$sender_rate_period max:$sender_rate_limit)"
    ratelimit = 1.2 / 1h / strict / per_conn

# END INSERT ratelimit

#END ACL-NOTQUIT-BLOCK

acl_smtp_predata:

#BEGIN ACL-SMTP-PREDATA-BLOCK

#END ACL-SMTP-PREDATA-BLOCK

acl_smtp_quit:

#BEGIN ACL-SMTP-QUIT-BLOCK
# BEGIN INSERT slow_fail_block

warn
    log_message = "Detected session with all messages failed"
    condition = ${if >= {${eval:$rcpt_count}}{1}{${if == {${eval:$rcpt_fail_count}}{${eval:$rcpt_count}}{yes}{no}}}{no}}
    set acl_m6 = 1

warn
    condition = ${if eq {${acl_m6}}{1}{1}{0}}
    ratelimit = 0 / 1h / strict / per_conn / slow_fail_block_$sender_host_address
    log_message = "Increment slow_fail_block Ratelimit - $sender_fullhost because of all messages failed"

warn
    ratelimit = 1 / 1h / noupdate / per_conn / slow_fail_block_$sender_host_address
    condition = ${if >= {${eval:$rcpt_count}}{1}{${if < {${eval:$rcpt_fail_count}}{${eval:$rcpt_count}}{yes}{no}}}{no}}
    set acl_m5 = 1
    log_message = "Detected session with ok message that previous had all failed"

warn
    condition = ${if eq {${acl_m5}}{1}{1}{0}}
    ratelimit = 0 / 1h / strict / per_conn / slow_fail_accept_$sender_host_address
    log_message = "Decrement slow_fail_lock Ratelimit - $sender_fullhost because one message was successful"

# END INSERT slow_fail_block

#END ACL-SMTP-QUIT-BLOCK

acl_smtp_rcpt:

#BEGIN ACL-RATELIMIT-BLOCK

#END ACL-RATELIMIT-BLOCK

#BEGIN ACL-PRE-RECIPIENT-BLOCK
# BEGIN INSERT default_pre_recipient
warn
  !domains = +relay_domains
  set acl_m_outbound_recipient = 1

# END INSERT default_pre_recipient
# BEGIN INSERT delay_unknown_hosts

warn
    !authenticated = *
    !hosts = : +loopback : +neighbor_netblocks : +trustedmailhosts : +recent_authed_mail_ips : +backupmx_hosts : +skipsmtpcheck_hosts : +senderverifybypass_hosts : +greylist_trusted_netblocks : +cpanel_mail_netblocks
    #only rate limit port 25
    condition = ${if eq {$received_port}{25}{yes}{no}}
    delay = 20s

# END INSERT delay_unknown_hosts
# BEGIN INSERT dkim_disable

warn
   control = dkim_disable_verify

# END INSERT dkim_disable

#END ACL-PRE-RECIPIENT-BLOCK

#BEGIN ACL-TEMPORARY-DOMAINS-IN-BLOCK
# BEGIN INSERT disable_receiving_from_temp_domains
# Don't allow incoming mail from temporary domains

deny
    condition = ${if eq{${perl{is_temp_domain}{$domain}}}{1}{true}{false}}
    message = "cPanel does not allow temporary domain accounts to relay email."

# END INSERT disable_receiving_from_temp_domains

#END ACL-TEMPORARY-DOMAINS-IN-BLOCK

#BEGIN ACL-RECIPIENT-BLOCK
# BEGIN INSERT blockeddomains
  deny
    message = Your host is not allowed to connect to this server.
    log_message = Sender domain is banned
    sender_domains = !+local_domains : +blocked_domains

# END INSERT blockeddomains
# BEGIN INSERT default_recipient
  accept
      hosts = :
      endpass
      verify = recipient

# Accept from any of the domain’s cached remote MX hosts.
  # As an optimization, we only check this for local domains because
  # only local domains will be in the remote MX cache.
  accept
      domains   = +local_domains
      condition = ${if exists {/etc/domain_remote_mx_ips.cdb}{1}{0}}
      hosts     = ${lookup{$domain}cdb{/etc/domain_remote_mx_ips.cdb}}
      endpass
      verify = recipient

accept
     condition = ${extract{size}{${stat:/etc/skipsmtpcheckhosts}}}
     hosts     = +skipsmtpcheck_hosts
     endpass
     verify = recipient

# implemented for "suspend incoming email" feature
  deny
       domains     = !$primary_hostname : +local_domains
       condition   = ${if exists {${extract{5}{:}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}}}}}{$value}}/etc/.${sg{$local_part}{\N[/+].*\N}{}}@${domain}.suspended_incoming}}
       message     = 525 5.7.13 Disabled recipient address
       log_message = Mail to ${local_part}@${domain} has been suspended

# implemented for "suspend outgoing email" feature for domains and individual webmail/pop accounts
  deny
    domains     = ! +local_domains
    condition   = ${perl{check_outgoing_mail_suspended}}
    message     = ${perl{get_outgoing_mail_suspended_message}}
    log_message = ${perl{get_outgoing_mail_suspended_message}}

# We want the SPF check headers if ARC signing is enabled, but don't need to affect delivery
.ifdef ARCSIGNING
  warn
    spf = neutral
    add_header = ${authresults {$primary_hostname}}
.endif

# END INSERT default_recipient

#END ACL-RECIPIENT-BLOCK
#mailman only

#BEGIN ACL-RECIPIENT-MAILMAN-BLOCK
# BEGIN INSERT default_recipient_mailman

# Accept bounces to lists even if callbacks or other checks would fail
  accept
           domains    = +local_domains
           condition  = ${if match{$local_part}{\N^(\.*[^./][^/]*)-bounces(\+.*)?$\N}}
           condition  = ${if exists{/usr/local/cpanel/3rdparty/mailman/lists/${1}${if !eq{$domain}{$primary_hostname}{_${domain}}{}}/config.pck}}
           add_header = X-WhitelistedRCPT-nohdrfromcallback: Yes

#if it gets here it isn't mailman

# END INSERT default_recipient_mailman

#END ACL-RECIPIENT-MAILMAN-BLOCK
#mailman only

#BEGIN ACL-IDENTIFY-SENDER-BLOCK
# BEGIN INSERT default_identify_sender
# Accept authenticated connections when the connection comes from the main
# account (foo@foo.com, where foo.com's user is foo).  Otherwise, we end up
# unintentionally rejecting mail if the user is set to :fail:.
  accept
          authenticated = *
          condition = ${if eq{${lookup{$sender_address_domain}lsearch{/etc/userdomains}}}{$sender_address_local_part}}
          endpass
          verify = recipient

# deny must be on the same line as hosts so it will get removed by buildeximconf if turned off
   deny hosts = ! +loopback : ! +senderverifybypass_hosts
        ! verify = sender

accept
          authenticated = *
          endpass
          verify = recipient

# if they used "pop before smtp" and its not bound for a localdomain we remember the recent_authed_mail_ips_domain
  warn
        domains = ! +local_domains
        hosts = ! +loopback
        hosts = +recent_authed_mail_ips
        set acl_c_recent_authed_mail_ips_text_entry = ${perl{get_recent_authed_mail_ips_text_entry}{1}}
        add_header = ${if exists{/etc/eximpopbeforesmtpwarning}{${perl{popbeforesmtpwarn}{$sender_host_address}}}{}}

# if they used "pop before smtp" then we just accept
  accept
    condition = ${if exists{/etc/popbeforesmtp}{1}{0}}
    hosts = ! +loopback
    hosts = +recent_authed_mail_ips
    endpass
    verify = recipient

# we need to check alwaysrelay since we don't require recentauthedmailiptracker to be enabled
  accept
    hosts = ! +loopback
    condition = ${if or {{eq{$acl_c_recent_authed_mail_ips_text_entry}{}}{!exists{/etc/popbeforesmtp}}}{${if exists {/etc/alwaysrelay}{${lookup{$sender_host_address}iplsearch{/etc/alwaysrelay}{1}{0}}}{0}}}{0}}
    set acl_c_recent_authed_mail_ips_text_entry = ${perl{get_recent_authed_mail_ips_text_entry}{1}}
    set acl_c_alwaysrelay = 1
    endpass
    verify = recipient

#recipient verifications are now done after smtp auth and pop before smtp so the users get back bounces instead of
  # a clogged outbox in outlook

# If we skipped identifying the sender in acl_smtp_mail (ie !def:acl_c_authenticated_local_user)
   # We need to do it here before we can test the two drops
   warn
       condition = ${if !def:acl_c_authenticated_local_user}
       condition = ${if match_ip{$sender_host_address}{+loopback}}
       condition = ${perl{identify_local_connection}{$sender_host_address}{$sender_host_port}{$received_ip_address}{$received_port}{1}}
       set acl_c_authenticated_local_user = ${perl{get_identified_local_connection_user}}

# drop connections to localhost that are from demo accounts (required for manual connections)
  drop
       condition = ${if def:acl_c_authenticated_local_user}
       condition = ${if !eq{$acl_c_authenticated_local_user}{root}}
       condition = ${if match_ip{$sender_host_address}{+loopback}}
       condition = ${lookup{$acl_c_authenticated_local_user}lsearch{/etc/demousers}{1}}
       message   = Demo accounts may not send mail

# drop connections to localhost that fail auth
  drop
       condition = $authentication_failed
       condition = ${if match_ip{$sender_host_address}{+loopback}}
       message   = Authentication failed

# we learned this in the acl_smtp_mail block
  accept
    condition = ${if def:acl_c_authenticated_local_user}
    endpass
    verify = recipient

# END INSERT default_identify_sender
# BEGIN INSERT default_message_submission

# Reject unauthenticated relay on port 465
 drop
    condition = ${if eq{$received_port}{465}{1}{0}}
    message = SMTP AUTH is required for message submission on port 465

# Reject unauthenticated relay on port 587
 drop
    condition = ${if eq{$received_port}{587}{1}{0}}
    message = SMTP AUTH is required for message submission on port 587

# END INSERT default_message_submission

#END ACL-IDENTIFY-SENDER-BLOCK

#BEGIN ACL-RECP-VERIFY-BLOCK
# BEGIN INSERT default_recp_verify
  # recipient verification to confirm the address is routable.
  # no callouts to remote systems are performed by default.
  require
    verify = recipient

# skip content scanning for suspended recipients that are being queued, blackholed or relayed
  accept
    condition = ${extract{suspended}{$address_data}}

# END INSERT default_recp_verify

#END ACL-RECP-VERIFY-BLOCK

#BEGIN ACL-POST-RECP-VERIFY-BLOCK
# BEGIN INSERT dictionary_attack

warn
    log_message = "Detected Dictionary Attack (Let $rcpt_fail_count bad recipients though before engaging)"
    condition = ${if > {${eval:$rcpt_fail_count}}{4}{yes}{no}}
    set acl_m7 = 1

warn
    condition = ${if eq {${acl_m7}}{1}{1}{0}}
    ratelimit = 0 / 1h / strict / per_conn
    log_message = "Increment Connection Ratelimit - $sender_fullhost because of Dictionary Attack"

drop
    condition = ${if eq {${acl_m7}}{1}{1}{0}}
    message = "Number of failed recipients exceeded.  Come back in a few hours."

# END INSERT dictionary_attack

#END ACL-POST-RECP-VERIFY-BLOCK

#BEGIN ACL-TRUSTEDLIST-BLOCK

#END ACL-TRUSTEDLIST-BLOCK

#BEGIN ACL-RBL-BLOCK

#END ACL-RBL-BLOCK

#BEGIN ACL-MAILAUTH-BLOCK

#END ACL-MAILAUTH-BLOCK

#BEGIN ACL-GREYLISTING-BLOCK
# BEGIN INSERT greylisting

# Greylisting
  defer   message = Temporarily unable to process your email. Please try again later.
          # skip if authenticated (with SMTP AUTH ...)
          !authenticated = *
          !hosts = +recent_recipient_mail_server_ips : +greylist_trusted_netblocks : +greylist_common_mail_providers : +cpanel_mail_netblocks
          domains = +local_domains : +relay_domains
          condition = ${sg{${readsocket{/var/run/cpgreylistd.sock}\
                       {should_defer ${sg{$sender_host_address}{ }{\x01}} ${sg{$sender_address}{ }{\x01}} ${sg{$local_part@$domain}{ }{\x01}}\n}\
                       {5s}{\n}{no}}}{\n}{}}
          log_message = Deferred due to greylisting. Host: '$sender_host_address' From: '$sender_address' To: '$local_part@$domain' SPF: '${if def:spf_result {$spf_result}{unchecked}}'

# END INSERT greylisting

#END ACL-GREYLISTING-BLOCK

#BEGIN ACL-RCPT-HARD-LIMIT-BLOCK

#END ACL-RCPT-HARD-LIMIT-BLOCK

#BEGIN ACL-RCPT-SOFT-LIMIT-BLOCK

#END ACL-RCPT-SOFT-LIMIT-BLOCK

#BEGIN ACL-SPAM-SCAN-CHECK-BLOCK
# BEGIN INSERT default_spam_scan_check

# The only problem with this setup is that if the message is for multiple users on the same server
  # and they are on different unix accounts, the settings for the first recipient which has spamassassin enabled will be used.
  # This shouldn't be a problem 99.9% of the time, however its a very small price to pay for a massive speed increase.

warn
         domains    = +local_domains
         condition  = ${if <= {$message_size}{1000K}}
         condition  = ${if !eq{${acl_m0}}{1}}
         condition  = ${if exists{/etc/global_spamassassin_enable}{1}{${if exists{${extract{5}{::}{${lookup passwd{${if eq{$domain}{$primary_hostname}{${sg{$local_part}{\N[/+].*\N}{}}}{${lookup{$domain}lsearch{/etc/userdomains}}}}}}}}/.spamassassinenable}}}}
         set acl_m0 = 1

# $local_part should work here rather than $local_part_data, but
         # $local_part_data sidesteps a taint-checking bug in Exim 4.94.
         #
         # Commit 12b7f811de is advertised as the fix for it, but during
         # testing an Exim built with that change still had the bug.
         # cf. https://www.mail-archive.com/exim-users@exim.org/msg54624.html
         #
         set acl_m1 = ${if eq{$domain}{$primary_hostname}{${sg{$local_part_data}{\N[/+].*\N}{}}}{${lookup{$domain}lsearch{/etc/userdomains}}}}

# END INSERT default_spam_scan_check
# BEGIN INSERT spam_scan_secondarymx

# Support for scanning secondarymx domains

warn  domains = ! +local_domains : +secondarymx_domains
         condition = ${if <= {$message_size}{1000K}{1}{0}}
          set acl_m0    = 1
          set acl_m1    = cpaneleximscanner

# END INSERT spam_scan_secondarymx

#END ACL-SPAM-SCAN-CHECK-BLOCK

#BEGIN ACL-POST-SPAM-SCAN-CHECK-BLOCK
# BEGIN INSERT delay_unknown_hosts

warn
    #acl_m2 is spam = YES
    condition = ${if eq {${acl_m2}}{1}{1}{0}}
    !hosts = : +loopback : +neighbor_netblocks : +trustedmailhosts : +recent_authed_mail_ips : +backupmx_hosts : +skipsmtpcheck_hosts : +senderverifybypass_hosts : +greylist_trusted_netblocks : +cpanel_mail_netblocks
    delay = 40s

# END INSERT delay_unknown_hosts
# BEGIN INSERT mailproviders
# Research in Motion - Blackberry white list
 warn
     condition = ${if exists {/etc/mailproviders/rim/ips}{${if match_ip{$sender_host_address}{iplsearch;/etc/mailproviders/rim/ips}{1}{0}}}{0}}
     set acl_m0 = 0

# END INSERT mailproviders

#END ACL-POST-SPAM-SCAN-CHECK-BLOCK

#BEGIN ACL-RECIPIENT-POST-BLOCK
# BEGIN INSERT default_recipient_post

accept  domains = +relay_domains

deny    message = ${expand:${lookup{host_accept_relay}lsearch{/etc/eximrejects}{$value}}}
          log_message = Rejected relay attempt: '$sender_host_address' From: '$sender_address' To: '$local_part@$domain'

# END INSERT default_recipient_post

#END ACL-RECIPIENT-POST-BLOCK

acl_smtp_starttls:

#BEGIN ACL-SMTP-STARTTLS-BLOCK

#END ACL-SMTP-STARTTLS-BLOCK

acl_smtp_vrfy:

#BEGIN ACL-SMTP-SMTP-VRFY-BLOCK

#END ACL-SMTP-SMTP-VRFY-BLOCK

acl_smtp_dkim:

#BEGIN ACL-SMTP-DKIM-BLOCK
# BEGIN INSERT dkim_authres
.ifdef ARCSIGNING
  warn
    condition = ${if def:h_dkim-signature: {yes}{no}}
    add_header = ${authresults {$primary_hostname}}
.endif
.ifndef DKIMREJECT
  accept
.endif

# END INSERT dkim_authres

#END ACL-SMTP-DKIM-BLOCK

begin authenticators

dovecot_plain:
    driver = dovecot
    public_name = PLAIN
    server_socket = /var/run/dovecot/auth-client
    server_set_id = $auth1
    server_condition = ${if and {{!match {$auth1}{\N[/]\N}}{eq{${if match {$auth1}{\N[+%:@]\N}{${lookup{${extract{2}{+%:@}{$auth1}}}lsearch{/etc/demodomains}{yes}}}{${lookup{$auth1}lsearch{/etc/demousers}{yes}}}}}{}}}{true}{false}}
    server_advertise_condition = ${if or {{def:tls_cipher}{match_ip{$sender_host_address}{+loopback}}}{1}{0}}

dovecot_login:
  driver = dovecot
  public_name = LOGIN
  server_socket = /var/run/dovecot/auth-client
  server_set_id = $auth1
  server_condition = ${if and {{!match {$auth1}{\N[/]\N}}{eq{${if match {$auth1}{\N[+%:@]\N}{${lookup{${extract{2}{+%:@}{$auth1}}}lsearch{/etc/demodomains}{yes}}}{${lookup{$auth1}lsearch{/etc/demousers}{yes}}}}}{}}}{true}{false}}
  server_advertise_condition = ${if or {{def:tls_cipher}{match_ip{$sender_host_address}{+loopback}}}{1}{0}}

# smarthost authentication disabled

######################################################################
#                      REWRITE CONFIGURATION                         #
######################################################################

# There are no rewriting specifications in this default configuration file.

begin rewrite

#!!#######################################################!!#
#!!# Here follow routers created from the old routers,   #!!#
#!!# for handling non-local domains.                     #!!#
#!!#######################################################!!#

begin routers

######################################################################
#                      ROUTERS CONFIGURATION                         #
#            Specifies how remote addresses are handled              #
######################################################################
#                          ORDER DOES MATTER                         #
#  A remote address is passed to each in turn until it is accepted.  #
######################################################################

# Remote addresses are those with a domain that does not match any item
# in the "local_domains" setting above.

blackhole_dovenull:
    driver= redirect
    local_parts = "@dovenull"
    allow_fail = true
    data = :fail: Unrouteable address

deliver_local_outside_jail:
    driver = manualroute
    require_files = "+/jail_owner"
    # users outside the jail will not be in /etc/passwd => We need to check if $local_part is in /jail_owner
    # we can't just check to see if they exist
    # because we still want to be able to mail root
    domains = +local_domains
    transport = remote_smtp
    route_list = "* 127.0.0.1"
    # self = send allows us to send outside the jail
    # we make sure /home/virtfs does not exist before we get here
    # to be safe
    self = send

suspendedcheck:
    driver = redirect
    domains = +local_domains
    local_parts = ${if eq {$domain} \
        {$primary_hostname} \
        {+path_safe_localparts} \
        {*} \
    }
    require_files = \
        +/etc/exim_suspended_list \
        : +/var/cpanel/suspended/${if eq {$domain} {$primary_hostname} \
            {$local_part} \
            {${lookup \
                {$domain} \
                lsearch{/etc/userdomains} \
                {$value} \
                {::::invalid::::} \
            }} \
        }
    local_part_suffix = +*
    local_part_suffix_optional
    allow_fail
    allow_defer
    allow_freeze
    # Sets r_suspendinfo to the contents of the suspendinfo file,
    # r_suspended_shell to the original shell of the suspended account,
    # r_suspended_redirect to the real mapped redirect setting.
    set = r_suspended_shell=${perl \
        {get_suspended_shell} \
        {${if eq {$domain} {$primary_hostname} \
            {$local_part} \
            {${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        }} \
    }
    # This skips content scanning for the primary account address with
    # live-transfers and handles the special :queue: setting by pretending
    # those are :blackhole: deliveries during address verification
    address_data = \
        router=$router_name \
        ${if \
            !match {${lookup \
                    {$local_part@$domain} \
                    wildlsearch{/etc/exim_suspended_list} \
                    {$value} \
                    {:unknown:} \
            }} \
            {\N^\s*(:unknown:.*)?$\N} \
            { \
                suspended=1 \
                redirect=${quote:${if \
                    !match{${lookup \
                            {$local_part@$domain} \
                            wildlsearch{/etc/exim_suspended_list} \
                            {$value} \
                            {:unknown:} \
                    }} \
                    {\N^\s*:\N} \
                    {${if eq \
                        {$verify_mode} \
                        {} \
                        {${lookup{$local_part@$domain} \
                            wildlsearch{/etc/exim_suspended_list} \
                            {$value} \
                            {:unknown:} \
                        }} \
                        {:blackhole:} \
                    }} \
                    {${sg \
                        {${lookup {$local_part@$domain} \
                            wildlsearch{/etc/exim_suspended_list} \
                            {$value} \
                            {:unknown:} \
                        }} \
                        {\N^\s*:queue:\N} \
                        {${if eq \
                            {$verify_mode} \
                            {} \
                            {:defer:} \
                            {:blackhole:} \
                        }} \
                    }} \
                }} \
            } \
        }
    data = ${extract \
    {redirect} \
    {$address_data} \
}

# The main routers handle traffic to the lists themselves and the suffixed ones
# handle mail to administrative aliases.  We have to use a two step process
# because otherwise mail to a list such as foo-admin@example.tld will not be
# handled properly.

mailman_virtual_router:
    driver = accept
    domains = !$primary_hostname : +local_domains
    local_parts = +path_safe_localparts
    require_files = /usr/local/cpanel/3rdparty/mailman/lists/${lc::$local_part}_${lc::$domain}/config.pck : /usr/local/cpanel/3rdparty/mailman/mail/mailman
    transport = mailman_virtual_transport

mailman_virtual_router_suffixed:
    driver = accept
    require_files = /usr/local/cpanel/3rdparty/mailman/lists/${lc::$local_part}_${lc::$domain}/config.pck : /usr/local/cpanel/3rdparty/mailman/mail/mailman
    domains = !$primary_hostname : +local_domains
    local_parts = +path_safe_localparts
    local_part_suffix = -admin     : \
            -bounces   : -bounces+* : \
                        -confirm   : -confirm+* : \
            -join      : -leave     : \
            -owner     : -request   : \
            -subscribe : -unsubscribe
    transport = mailman_virtual_transport

mailman_virtual_router_nodns:
    driver = accept
    require_files = /usr/local/cpanel/3rdparty/mailman/lists/${lc::$local_part}/config.pck : /usr/local/cpanel/3rdparty/mailman/mail/mailman
    condition    = \
           ${if or {{match{$local_part}{.*_.*}} \
                     {eq{$local_part}{mailman}}} \
                {1}{0}}
    domains = $primary_hostname
    local_parts = +path_safe_localparts
    transport = mailman_virtual_transport_nodns

mailman_virtual_router_nodns_suffixed:
    driver = accept
    require_files = /usr/local/cpanel/3rdparty/mailman/lists/${lc::$local_part}/config.pck : /usr/local/cpanel/3rdparty/mailman/mail/mailman
    condition    = \
           ${if or {{match{$local_part}{.*_.*}} \
                     {eq{$local_part}{mailman}}} \
                {1}{0}}
    local_part_suffix = -admin     : \
            -bounces   : -bounces+* : \
                        -confirm   : -confirm+* : \
            -join      : -leave     : \
            -owner     : -request   : \
            -subscribe : -unsubscribe
    domains = $primary_hostname
    local_parts = +path_safe_localparts
    transport = mailman_virtual_transport_nodns

democheck:
    driver = redirect
    require_files = "+/etc/demouids"
    condition = ${if >= {$originator_uid}{100}{1}{0}}
    condition = "${extract{size}{${stat:/etc/demouids}}}"
    condition = "${if eq \
        {${lookup \
            {$originator_uid} \
            lsearch{/etc/demouids} \
            {$value} \
        }} \
        {} \
        {false} \
        {true} \
    }"
    allow_fail
    data = :fail: demo accounts are not permitted to relay email

#
# This is to make sure that cpanel@* always passes sender verification
# so that the system notifications don't get rejected by spam filters
# doing a sender verification check.
#
blackhole_cpanel_at:
    driver = redirect
    local_parts = cpanel
    domains = !$primary_hostname
    verify_only
    data = :blackhole:

# cPanel Mail Archiving is disabled

#
# Handles identification of messages, nobody and webspam and mail trap checks
# in check_mail_permissions and notifies if we are defering a message
#

boxtrapper_autowhitelist:
  driver = accept
  condition = ${if eq {$authenticated_id}{}{0}{${if eq {$sender_address}{$local_part@$domain}{0}{${if match{$received_protocol}{\N^e?smtps?a$\N}{${perl{checkbx_autowhitelist}{$authenticated_id}}}{${if eq{$received_protocol}{local}{${perl{checkbx_autowhitelist}{$sender_ident}}}{0}}}}}}}}
  require_files = "+/usr/local/cpanel/bin/boxtrapper"
  transport = boxtrapper_autowhitelist
  no_verify
  unseen

check_mail_permissions:
    domains = ! +local_domains
    condition =  ${if eq {$authenticated_id}{root}{0}{1}}
    ignore_target_hosts = +loopback : 64.94.110.0/24
    driver = redirect
    allow_filter
    reply_transport = address_reply
    user = mailnull
    no_verify
    expn = false
    condition = "${perl{check_mail_permissions}}"
    data = "${perl{check_mail_permissions_results}}"

#
#  discover_sender_information is not included
#  because from_rewrites are not enabled
#

#
# If check_mail_permissions needs to defer or fail a message it is done here
#
enforce_mail_permissions:
    domains = ! +local_domains
    ignore_target_hosts = +loopback : 64.94.110.0/24
    condition =  ${if eq {$authenticated_id}{root}{0}{1}}
    driver = redirect
    allow_fail
    allow_defer
    no_verify
    expn = false
    condition = "${perl{enforce_mail_permissions}}"
    data = "${perl{enforce_mail_permissions_results}}"

#
# Increments max emails per hour if needed
#
increment_max_emails_per_hour_if_needed:
    domains = ! +local_domains
    ignore_target_hosts = +loopback : 64.94.110.0/24
    condition =  ${if eq {$authenticated_id}{root}{0}{1}}
    driver = redirect
    allow_fail
    no_verify
    one_time
    expn = false
    condition = "${perl{increment_max_emails_per_hour_if_needed}}"
    data = ":unknown:"

#
#  reject_forwarded_mail_marked_as_spam is not included
#  because no_forward_outbound_spam and no_forward_outbound_spam_over_int
#  are both disabled
#

# This router routes to a statically defined host from /etc/manualmx
# so that any mail received for the domain will skip MX lookups and attempt to
# deliver the message directly to the specified host.
manualmx:
    driver = manualroute
    domains = +manualmx_domains
    transport = remote_smtp
    route_data = ${lookup \
        {$domain} \
        lsearch{/etc/manualmx} \
    }

#
# lookuphost router
#

#
# Lookup host router for remote smtp and ignores verisign site finder 'service'
# This matches lookup exactly except we look for X-Precedence and Precedence so
# we can determinte what is an auto responder message in the log.
# Note: there is nothing to
# prevent X-Precedence from being added to non-autoresponded messages so this is for
# logging reasons only
#
# Note: Boxtrapper sets Precedence to auto_reply
#
autoreply_dkim_lookuphost:
    driver = dnslookup
    domains = ! +local_domains
    condition = "${perl{sender_domain_can_dkim_sign}}"
    condition = "${if \
        or { \
            {match{$h_precedence:}{auto}} \
            {match{$h_x-precedence:}{auto}} \
        } \
        {1}{0} \
    }"
    #ignore verisign to prevent waste of bandwidth
    ignore_target_hosts = +loopback : 64.94.110.0/24
    headers_add = "${perl{mailtrapheaders}}"
    transport = dkim_remote_smtp

#
# Lookup host router for remote smtp and ignores verisign site finder 'service' and uses domain keys
#

dkim_lookuphost:
    driver = dnslookup
    domains = ! +local_domains
    condition = "${perl{sender_domain_can_dkim_sign}}"
    #ignore verisign to prevent waste of bandwidth
    ignore_target_hosts = +loopback : 64.94.110.0/24
    headers_add = "${perl{mailtrapheaders}}"
.ifdef SRSENABLED
    # if outbound, and forwarding has been done, use an alternate transport
    transport = ${if eq {$local_part@$domain} \
                        {$original_local_part@$original_domain} \
                     {dkim_remote_smtp} {dkim_remote_forwarded_smtp}}
.else
    transport = dkim_remote_smtp
.endif

autoreply_lookuphost:
    driver = dnslookup
    domains = ! +local_domains
    condition = "${if \
        or { \
            {match{$h_precedence:}{auto}} \
            {match{$h_x-precedence:}{auto}} \
        } \
        {1}{0} \
    }"
    #ignore verisign to prevent waste of bandwidth
    ignore_target_hosts = +loopback : 64.94.110.0/24
    headers_add = "${perl{mailtrapheaders}}"
    transport = remote_smtp

#
# Lookup host router for remote smtp and ignores verisign site finder 'service'
#

lookuphost:
    # router from etc/exim/replacecf/dkim/lookuphost
    driver = dnslookup
    domains = ! +local_domains
    #ignore verisign to prevent waste of bandwidth
    ignore_target_hosts = +loopback : 64.94.110.0/24
    headers_add = "${perl{mailtrapheaders}}"
.ifdef SRSENABLED
    # if outbound, and forwarding has been done, use an alternate transport
    transport = ${if eq {$local_part@$domain} \
                        {$original_local_part@$original_domain} \
                     {remote_smtp} {remote_forwarded_smtp}}
.else
    transport = remote_smtp
.endif

# This router routes to remote hosts over SMTP by explicit IP address,
# given as a "domain literal" in the form [nnn.nnn.nnn.nnn]. The RFCs
# require this facility, which is why it is enabled by default in Exim.
# If you want to lock it out, set forbid_domain_literals in the main
# configuration section above.

#
# Literal Transports .. ignores verisigns sitefinder service
#

literal:
    driver = ipliteral
    domains = ! +local_domains
    ignore_target_hosts = +loopback : 64.94.110.0/24
    headers_add = "${perl{mailtrapheaders}}"
.ifdef SRSENABLED
    # if outbound, and forwarding has been done, use an alternate transport
    transport = ${if eq {$local_part@$domain} \
                        {$original_local_part@$original_domain} \
                     {remote_smtp} {remote_forwarded_smtp}}
.else
    transport = remote_smtp
.endif

#!!# This new router is put here to fail all domains that
#!!# were not in local_domains in the Exim 3 configuration.

#
# Trap Failures to Remote Domain
#

fail_remote_domains:
    driver = redirect
    domains = ! +local_domains : ! localhost : ! localhost.localdomain
    allow_fail
    data = ${if eq {$verify_mode}{S} \
        {:fail: The mail server does not recognize $local_part@$domain as a valid sender.} \
        {:fail: The mail server could not deliver mail to $local_part@$domain.  The account or domain may not exist, they may be blacklisted, or missing the proper dns entries.} \
    }

#!!#######################################################!!#
#!!# Here follow routers created from the old directors, #!!#
#!!# for handling local domains.                         #!!#
#!!#######################################################!!#

######################################################################
#                      DIRECTORS CONFIGURATION                       #
#             Specifies how local addresses are handled              #
######################################################################
#                          ORDER DOES MATTER                         #
#   A local address is passed to each in turn until it is accepted.  #
######################################################################

# Local addresses are those with a domain that matches some item in the
# "local_domains" setting above, or those which are passed back from the
# routers because of a "self=local" setting (not used in this configuration).

# This director handles aliasing using a traditional /etc/aliases file.
# If any of your aliases expand to pipes or files, you will need to set
# up a user and a group for these deliveries to run under. You can do
# this by uncommenting the "user" option below (changing the user name
# as appropriate) and adding a "group" option if necessary. Alternatively, you
# can specify "user" on the transports that are used. Note that those
# listed below are the same as are used for .forward files; you might want
# to set up different ones for pipe and file deliveries from aliases.

#spam_filter:
#  driver = forwardfile
#  file = /etc/spam.filter
#  no_check_local_user
#  no_verify
#  filter
#  allow_system_actions

#
# Account level filtering for everything but the main account
#

central_filter:
    driver = redirect
    allow_filter
    allow_fail
    forbid_filter_run
    forbid_filter_perl
    forbid_filter_lookup
    forbid_filter_readfile
    forbid_filter_readsocket
    no_check_local_user
    domains = !$primary_hostname : dsearch;/etc/vfilters
    require_files = "+/etc/vfilters/${domain_data}"
    condition = "${extract \
        {size} \
        {${stat:/etc/vfilters/${domain_data}}} \
    }"
    file = /etc/vfilters/${domain_data}
    file_transport = address_file
    directory_transport = address_directory
    pipe_transport = ${if forall \
        {/bin/cagefs_enter:/usr/sbin/cagefsctl} \
        {exists{$item}} \
        {cagefs_virtual_address_pipe} \
        {${if forany \
            {${extract{6} \
    {:} \
    {${lookup \
        passwd{ \
            ${lookup \
                {$domain_data} \
                lsearch{/etc/userdomains} \
            } \
        } \
    }} \
}:$r_suspended_shell} \
            {match{$item}{\N(jail|no)shell\N}} \
            {jailed_virtual_address_pipe} \
            {virtual_address_pipe} \
        }} \
    }
    reply_transport = address_reply
    router_home_directory = ${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}
    user = "${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}"
    no_verify

#
# Account level filtering for the main account
#
# checks /etc/vfilters/maindomain if its a localuser (ie main acct)
#
mainacct_central_user_filter:
    driver = redirect
    allow_filter
    allow_fail
    forbid_filter_run
    forbid_filter_perl
    forbid_filter_lookup
    forbid_filter_readfile
    forbid_filter_readsocket
    check_local_user
    domains = $primary_hostname
    condition = ${if eq \
        {${lookup \
            {$local_part_data} \
            lsearch{/etc/domainusers} \
            {$value} \
        }} \
        {} \
        {0} \
        {${if exists \
            {/etc/vfilters/${lookup \
                {$local_part_data} \
                lsearch{/etc/domainusers} \
                {$value} \
            }} \
            {${extract \
                {size} \
                {${stat:/etc/vfilters/${lookup \
                    {$local_part_data} \
                    lsearch{/etc/domainusers} \
                    {$value} \
                }}} \
            }} \
            {0} \
        }} \
    }
    file = "/etc/vfilters/${lookup \
        {$local_part_data} \
        lsearch{/etc/domainusers} \
        {$value} \
    }"
    directory_transport = address_directory
    file_transport = address_file
    pipe_transport = ${if forall \
        {/bin/cagefs_enter:/usr/sbin/cagefsctl} \
        {exists{$item}} \
        {cagefs_address_pipe} \
        {${if forany \
            {${extract \
    {6} \
    {:} \
    {${lookup \
        passwd{$local_part_data} \
    }} \
} \:$r_suspended_shell} \
            {match{$item}{\N(jail|no)shell\N}} \
            {jailed_address_pipe} \
            {address_pipe} \
        }} \
    }
    reply_transport = address_reply
    user = $local_part_data
    group = $local_part_data
    retry_use_local_part
    no_verify

#
# User Level Filtering for the main account
#

central_user_filter:
    driver = redirect
    allow_filter
    allow_fail
    forbid_filter_run
    forbid_filter_perl
    forbid_filter_lookup
    forbid_filter_readfile
    forbid_filter_readsocket
    check_local_user
    domains = $primary_hostname

require_files = "+${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{$local_part_data} \
        {$value} \
    }} \
}/etc/filter"
    condition = "${extract \
        {size} \
        {${stat:${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{$local_part_data} \
        {$value} \
    }} \
}/etc/filter}} \
    }"
    file = "${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{$local_part_data} \
        {$value} \
    }} \
}/etc/filter"
    router_home_directory = ${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{$local_part_data} \
        {$value} \
    }} \
}
    directory_transport = address_directory
    file_transport = address_file
    pipe_transport = ${if forall \
        {/bin/cagefs_enter:/usr/sbin/cagefsctl} \
        {exists{$item}} \
        {cagefs_address_pipe} \
        {${if forany \
            {${extract \
    {6} \
    {:} \
    {${lookup \
        passwd{$local_part_data} \
    }} \
} \:$r_suspended_shell} \
            {match{$item}{\N(jail|no)shell\N}} \
            {jailed_address_pipe} \
            {address_pipe} \
        }} \
    }
    reply_transport = address_reply
    user = $local_part_data
    group = $local_part_data
    local_part_suffix = +*
    local_part_suffix_optional
    retry_use_local_part
    no_verify

#
# User Level Filtering for virtual users
#

virtual_user_filter:
    driver = redirect
    allow_filter
    allow_fail
    forbid_filter_run
    forbid_filter_perl
    forbid_filter_lookup
    forbid_filter_readfile
    forbid_filter_readsocket
    domains = \
        !$primary_hostname \
        : ${lookup \
            {$domain} \
            lsearch{/etc/userdomains} \
            {${perl{untaint}{$domain}}} \
        }
    require_files = "+${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}/etc/$domain_data/$local_part_data/filter"
    user = "${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}"
    router_home_directory = ${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}
    local_parts = ${if exists{${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}/etc/$domain_data}{dsearch;${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}/etc/$domain_data}}
    condition = "${extract{size}{${stat:$home/etc/$domain_data/$local_part_data/filter}}}"
    file = "$home/etc/$domain_data/$local_part_data/filter"
    directory_transport = address_directory
    file_transport = address_file
    pipe_transport = ${if forall \
        {/bin/cagefs_enter:/usr/sbin/cagefsctl} \
        {exists{$item}} \
        {cagefs_virtual_address_pipe} \
        {${if forany \
            {${extract{6} \
    {:} \
    {${lookup \
        passwd{ \
            ${lookup \
                {$domain_data} \
                lsearch{/etc/userdomains} \
            } \
        } \
    }} \
}:$r_suspended_shell} \
            {match{$item}{\N(jail|no)shell\N}} \
            {jailed_virtual_address_pipe} \
            {virtual_address_pipe} \
        }} \
    }
    reply_transport = address_reply
    local_part_suffix = +*
    local_part_suffix_optional
    retry_use_local_part
    no_verify

virtual_aliases_nostar:
    driver = redirect
    allow_defer
    allow_fail
    domains = !$primary_hostname : dsearch;/etc/valiases
    user = "${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}"
    address_data = \
        "router=$router_name \
        redirect=${quote:${lookup \
            {$local_part@$domain_data} \
            lsearch{/etc/valiases/$domain_data} \
    }}"
    data = ${extract \
    {redirect} \
    {$address_data} \
}
    file_transport = address_file
    pipe_transport = ${if forall \
        {/bin/cagefs_enter:/usr/sbin/cagefsctl} \
        {exists{$item}} \
        {cagefs_virtual_address_pipe} \
        {${if forany \
            {${extract \
    {6} \
    {:} \
    {${lookup \
        passwd{$local_part_data} \
    }} \
} \:$r_suspended_shell} \
            {match{$item}{\N(jail|no)shell\N}} \
            {jailed_virtual_address_pipe} \
            {virtual_address_pipe} \
        }} \
    }
    router_home_directory = ${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}
    local_part_suffix = +*
    local_part_suffix_optional
    retry_use_local_part
    unseen

virtual_user_overquota:
  driver = redirect
  domains = !$primary_hostname : ${lookup{$domain}lsearch{/etc/userdomains}{${perl{untaint}{$domain}}}}
  require_files = "+$home/etc/$domain_data"
  user = "${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}"
  router_home_directory = ${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}

# NB: On busy servers Dovecot may take several seconds to respond to
  # this request. So we set the timeout generously:
  condition = "${if match {${readsocket{/var/run/dovecot/quota-status}{request=smtpd_access_policy\nrecipient=${quote:$local_part}@${quote:$domain_data}\nsize=$message_size\n\n}{45s}{\n}{SOCKETFAIL}}}{action=5}{true}{false}}"

data = ":fail:Mailbox is full / Blocks limit exceeded / Inode limit exceeded"
  verify_only
  allow_fail

#
# Virtual User Spam Boxes
#

virtual_user_spam:
    driver = redirect
    local_parts = +path_safe_localparts
    domains = \
        !$primary_hostname \
        : ${lookup \
            {$domain} \
            lsearch{/etc/userdomains} \
            {${perl{untaint}{$domain}}} \
        }
    condition = ${if match{$h_x-spam-status:}{\N^Yes\N}{true}{false}}
    require_files = \
        "+${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}/.spamassassinboxenable: \
            +${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}/mail/$domain_data/$local_part"
    router_home_directory = ${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}
    headers_remove="x-uidl"
    data = "${quote_local_part:$local_part}+spam@$domain_data"
    redirect_router = virtual_user

virtual_boxtrapper_user:
  driver = accept
  local_parts = +path_safe_localparts
  domains = !$primary_hostname : ${lookup \
    {$domain} \
    lsearch{/etc/userdomains} \
    {${perl{untaint} \
        {$domain} \
    }} \
}
  require_files = "+/usr/local/cpanel/bin/boxtrapper:+${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}/etc/$domain_data/$local_part/.boxtrapperenable:+${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}/mail/$domain_data/$local_part"
  user = "${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}"
  router_home_directory = "${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}"
  headers_remove="x-uidl"
  transport = virtual_boxtrapper_userdelivery

virtual_user:
    driver = accept
    domains = \
        !$primary_hostname \
        : ${lookup \
            {$domain} \
            lsearch{/etc/userdomains} \
            {${perl{untaint}{$domain}}} \
        }
    local_parts = +path_safe_localparts
    require_files = "+${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}/mail/$domain_data/$local_part"
    router_home_directory = ${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}
    headers_remove="x-uidl"
    local_part_suffix = +*
    local_part_suffix_optional
    user = mailnull
    group = mail
    transport = dovecot_virtual_delivery
    set = r_bcc_addr=${if forany \
        {${addresses:$h_to:}:${addresses:$h_cc:}} \
        {or { \
            {eqi \
                {${extract{1}{+}{${local_part:$item}}}@${domain:$item}} \
                {$local_part@$domain_data} \
            } \
            {eqi \
                {${extract{1}{+}{${local_part:$item}}}@${domain:$item}} \
                {$original_local_part@$original_domain} \
            } \
        }} \
        {} \
        {$local_part@$domain} \
    }
    set = r_cpanel_user=${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}
    #
    # If the delivery address, original address (forwarded),
    # or address with subaddress is shown on the To: or Cc:
    # lines or the message has the List-Id: or Precedence:
    # header we allow the message to be batched to
    # dovecot LMTP via transport dovecot_virtual_delivery
    #
    # If it does match match the above we do not allow the message
    # to be batched in order to ensure that the Envelope-To: header
    # does not contain a user that was Bcc:ed so savvy recipients
    # cannot see that another email was Bcc:ed in the header
    # via transport dovecot_virtual_delivery_no_batch
    #
    # Note: match_address would be nice here but the second string
    # is not expanded for security reasons
    #

#
# has_alias_but_no_mailbox_discarded_to_prevent_loop required either of the following:
#
# 1. There is an active alias in the valias file
# 2. There is an active autoresponder and the * is set to :fail:
#
has_alias_but_no_mailbox_discarded_to_prevent_loop:
    driver = redirect
    domains = !$primary_hostname : dsearch;/etc/valiases
    condition = ${lookup \
        {$local_part@$domain_data} \
        lsearch{/etc/valiases/$domain_data} \
        {1} \
        {0} \
    }
    condition = "${if forany{<, \
        ${lookup \
            {$local_part@$domain_data} \
            lsearch{/etc/valiases/$domain_data} \
            {$value} \
        }} \
        {!match{$item}{\N/autorespond\N}} \
        {1} \
        {${if match \
            {${lookup \
                {\N*\N} \
                lsearch{/etc/valiases/$domain_data} \
                {$value} \
            }} \
            {:fail:} \
            {1} \
            {0} \
        }} \
    }"
    data=":blackhole:"
    local_part_suffix = +*
    local_part_suffix_optional
    disable_logging = true

# srs is disabled

valias_domain_file:
  driver = redirect
  allow_defer
  allow_fail
  domains = !$primary_hostname : dsearch;/etc/vdomainaliases
  user = "${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}"
  condition = ${lookup {$domain_data} lsearch {/etc/vdomainaliases/$domain_data}{yes}{no} }
  address_data = router=$router_name redirect=${quote:${quote_local_part:$local_part}@${lookup{$domain_data}lsearch{/etc/vdomainaliases/$domain_data}}}
  data = ${extract{redirect}{$address_data}}

virtual_aliases:
    driver = redirect
    allow_defer
    allow_fail
    domains = !$primary_hostname : dsearch;/etc/valiases
    user = "${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}"
    router_home_directory = ${extract \
    {5} \
    {::} \
    {${lookup \
        passwd{${lookup \
    {$domain_data} \
    lsearch{/etc/userdomains} \
    {$value}}} \
        {$value} \
    }} \
}
    address_data = \
        "router=$router_name \
        redirect=${quote:${lookup \
            {*} \
            lsearch{/etc/valiases/$domain_data} \
        }}"
    data = ${extract \
    {redirect} \
    {$address_data} \
}
    file_transport = address_file
    pipe_transport = ${if forall \
        {/bin/cagefs_enter:/usr/sbin/cagefsctl} \
        {exists{$item}} \
        {cagefs_virtual_address_pipe} \
        {${if forany \
            {${extract \
    {6} \
    {:} \
    {${lookup \
        passwd{$local_part_data} \
    }} \
} \:$r_suspended_shell} \
            {match{$item}{\N(jail|no)shell\N}} \
            {jailed_virtual_address_pipe} \
            {virtual_address_pipe} \
        }} \
    }

# This director handles forwarding using traditional .forward files.
# If you want it also to allow mail filtering when a forward file
# starts with the string "# Exim filter", uncomment the "filter" option.
# The check_ancestor option means that if the forward file generates an
# address that is an ancestor of the current one, the current one gets
# passed on instead. This covers the case where A is aliased to B and B
# has a .forward file pointing to A. The three transports specified at the
# end are those that are used when forwarding generates a direct delivery
# to a file, or to a pipe, or sets up an auto-reply, respectively.

system_aliases:
    driver = redirect
    allow_defer
    allow_fail
    domains = $primary_hostname : localhost
    address_data = \
        "router=$router_name \
        redirect=${quote: \
            ${lookup \
                {$local_part} \
                lsearch{/etc/aliases} \
            }}"
    data = ${extract \
    {redirect} \
    {$address_data} \
}
    file_transport = address_file
    pipe_transport = address_pipe
    # user = exim

local_aliases:
    driver = redirect
    allow_defer
    allow_fail
    domains = $primary_hostname : localhost
    address_data = \
        "router=$router_name \
        redirect=${quote: \
            ${lookup \
                {$local_part} \
                lsearch{/etc/localaliases} \
            }}"
    data = ${extract \
    {redirect} \
    {$address_data} \
}
    file_transport = address_file
    pipe_transport = address_pipe
    check_local_user

userforward:
    driver = redirect
    allow_filter
    allow_fail
    forbid_filter_run
    forbid_filter_perl
    forbid_filter_lookup
    forbid_filter_readfile
    forbid_filter_readsocket
    check_ancestor
    check_local_user
    domains = $primary_hostname
    no_expn
    require_files = "+$home/.forward"
    condition = "${extract{size}{${stat:$home/.forward}}}"
    file = $home/.forward
    file_transport = address_file
    pipe_transport = ${if forall \
        {/bin/cagefs_enter:/usr/sbin/cagefsctl} \
        {exists{$item}} \
        {cagefs_address_pipe} \
        {${if forany \
            {${extract \
    {6} \
    {:} \
    {${lookup \
        passwd{$local_part_data} \
    }} \
} \:$r_suspended_shell} \
            {match{$item}{\N(jail|no)shell\N}} \
            {jailed_address_pipe} \
            {address_pipe} \
        }} \
    }
    reply_transport = address_reply
    directory_transport = address_directory
    user = $local_part_data
    group = $local_part_data
    no_verify

# srs is disabled

localuser_root:
    driver = redirect
    allow_fail
    domains = $primary_hostname : localhost
    check_local_user
    condition = ${if eq {$local_part_data}{root}}
    data = :fail: root cannot accept local mail deliveries

localuser_overquota:
  driver = redirect
  domains = $primary_hostname
  check_local_user

# NB: On busy servers Dovecot may take several seconds to respond to
  # this request. So we set the timeout generously:
  condition =  "${if match {${readsocket{/var/run/dovecot/quota-status}{request=smtpd_access_policy\nrecipient=${quote:$local_part}\nsize=$message_size\n\n}{45s}{\n}{SOCKETFAIL}}}{action=5}{true}{false}}"

data = ":fail:Mailbox is full / Blocks limit exceeded / Inode limit exceeded"
  verify_only
  allow_fail

#
# Optimized spambox router
#

localuser_spam:
    driver = redirect
    domains = $primary_hostname
    require_files = "+$home/.spamassassinboxenable"
    condition = ${if match{$h_x-spam-status:}{\N^Yes\N}{true}{false}}
# sets home,user,group
    check_local_user
    headers_remove="x-uidl"
    data = "${quote_local_part:$local_part_data}+spam"
    redirect_router = localuser

boxtrapper_localuser:
  driver = accept
  require_files = "+/usr/local/cpanel/bin/boxtrapper:+$home/etc/.boxtrapperenable"
  check_local_user
  domains = $primary_hostname
  transport = local_boxtrapper_delivery

localuser:
    driver = accept
# sets home,user,group
    check_local_user
    domains = $primary_hostname
    headers_remove="x-uidl"
    local_part_suffix = +*
    local_part_suffix_optional
    user = mailnull
    group = mail
    transport = dovecot_delivery
    set = r_bcc_addr=${if forany \
        {${addresses:$h_to:}:${addresses:$h_cc:}} \
        {or { \
            { eqi \
                {${extract \
                    {1} \
                    {+} \
                    {${local_part:$item}} \
                }@${domain:$item}} \
                {$local_part@$domain} \
            } \
            { eqi \
                {${extract \
                    {1} \
                    {+} \
                    {${local_part:$item}} \
                }@${domain:$item}} \
                {$original_local_part@$original_domain} \
            } \
        }} \
        {} \
        {$local_part@$domain} \
    }
    set = r_cpanel_user=${local_part}
    #
    # If the delivery address, original address (forwarded),
    # or address with subaddress is shown on the To: or Cc:
    # lines or the message has the List-Id: or Precedence:
    # header we allow the message to be batched to
    # dovecot LMTP via transport dovecot_virtual_delivery
    #
    # If it does match match the above we do not allow the message
    # to be batched in order to ensure that the Envelope-To: header
    # does not contain a user that was Bcc:ed so savvy recipients
    # cannot see that another email was Bcc:ed in the header
    # via transport dovecot_virtual_delivery_no_batch
    #
    # Note: match_address would be nice here but the second string
    # is not expanded for security reasons
    #

# This director matches local user mailboxes.

######################################################################
#                      TRANSPORTS CONFIGURATION                      #
######################################################################
#                       ORDER DOES NOT MATTER                        #
#     Only one appropriate transport is called for each delivery.    #
######################################################################

# A transport is used only when referenced from a director or a router that
# successfully handles an address.

# This transport is used for delivering messages over SMTP connections.

begin transports

mailman_virtual_transport:
    driver = pipe
    command = /usr/local/cpanel/3rdparty/mailman/mail/mailman \
              '${if def:local_part_suffix \
                    {${sg{$local_part_suffix}{-(\\w+)(\\+.*)?}{\$1}}} \
                    {post}}' \
              ${perl{untaint}{${lc:$local_part}_${lc:$domain}}}
    current_directory = /usr/local/cpanel/3rdparty/mailman
    home_directory = /usr/local/cpanel/3rdparty/mailman
    user = mailman
    group = mailman

mailman_virtual_transport_nodns:
    driver = pipe
    command = /usr/local/cpanel/3rdparty/mailman/mail/mailman \
              '${if def:local_part_suffix \
                    {${sg{$local_part_suffix}{-(\\w+)(\\+.*)?}{\$1}}} \
                    {post}}' \
              ${perl{untaint}{${lc:$local_part}}}
    current_directory = /usr/local/cpanel/3rdparty/mailman
    home_directory = /usr/local/cpanel/3rdparty/mailman
    user = mailman
    group = mailman

remote_smtp:
  driver = smtp
  interface = <; ${if > \
    {${extract \
        {size} \
        {${stat:/etc/mailips}} \
    }} \
    {0} \
    {${lookup \
        {${lc:${perl{get_message_sender_domain}}}} \
        lsearch{/etc/mailips} \
        {$value} \
        {${lookup \
            {${if match_domain \
                {$original_domain} \
                {+relay_domains} \
                {${lc:$original_domain}} \
                {} \
            }} \
            lsearch{/etc/mailips} \
            {$value} \
            {${lookup \
                {${perl{get_sender_from_uid}}} \
                lsearch*{/etc/mailips} \
                {$value} \
                {} \
            }} \
        }} \
    }} \
}
  helo_data = ${if > \
    {${extract{size}{${stat:/etc/mailhelo}}}} \
    {0} \
    {${lookup \
        {${lc:${perl{get_message_sender_domain}}}} \
        lsearch{/etc/mailhelo} \
        {$value} \
        {${lookup \
            {${if match_domain \
                {$original_domain} \
                {+relay_domains} \
                {${lc:$original_domain}} \
                {} \
            }} \
            lsearch{/etc/mailhelo} \
            {$value} \
            {${lookup \
                {${perl{get_sender_from_uid}}} \
                lsearch*{/etc/mailhelo} \
                {$value} \
                {$primary_hostname} \
            }} \
        }} \
    }} \
    {$primary_hostname} \
}
  hosts_try_chunking = 198.51.100.1
  message_linelength_limit = 4096

dkim_remote_smtp:
  driver = smtp
  interface = <; ${if > \
    {${extract \
        {size} \
        {${stat:/etc/mailips}} \
    }} \
    {0} \
    {${lookup \
        {${lc:${perl{get_message_sender_domain}}}} \
        lsearch{/etc/mailips} \
        {$value} \
        {${lookup \
            {${if match_domain \
                {$original_domain} \
                {+relay_domains} \
                {${lc:$original_domain}} \
                {} \
            }} \
            lsearch{/etc/mailips} \
            {$value} \
            {${lookup \
                {${perl{get_sender_from_uid}}} \
                lsearch*{/etc/mailips} \
                {$value} \
                {} \
            }} \
        }} \
    }} \
}
  helo_data = ${if > \
    {${extract{size}{${stat:/etc/mailhelo}}}} \
    {0} \
    {${lookup \
        {${lc:${perl{get_message_sender_domain}}}} \
        lsearch{/etc/mailhelo} \
        {$value} \
        {${lookup \
            {${if match_domain \
                {$original_domain} \
                {+relay_domains} \
                {${lc:$original_domain}} \
                {} \
            }} \
            lsearch{/etc/mailhelo} \
            {$value} \
            {${lookup \
                {${perl{get_sender_from_uid}}} \
                lsearch*{/etc/mailhelo} \
                {$value} \
                {$primary_hostname} \
            }} \
        }} \
    }} \
    {$primary_hostname} \
}
  dkim_domain = ${perl{get_dkim_domain}}
  dkim_selector = default
  dkim_private_key = "/var/cpanel/domain_keys/private/${dkim_domain}"
  dkim_canon = relaxed
  hosts_try_chunking = 198.51.100.1
  message_linelength_limit = 4096
.ifdef ARCSIGNING
 arc_sign = $primary_hostname:default:/var/cpanel/domain_keys/private/$primary_hostname:default
.endif

# remote_forwarded_srs absent due to SRS support being disabled

# This transport is used for local delivery to user mailboxes. By default
# it will be run under the uid and gid of the local user, and requires
# the sticky bit to be set on the /var/mail directory. Some systems use
# the alternative approach of running mail deliveries under a particular
# group instead of using the sticky bit. The commented options below show
# how this can be done.

# This transport is used for handling pipe deliveries generated by alias
# or .forward files. If the pipe generates any standard output, it is returned
# to the sender of the message as a delivery error. Set return_fail_output
# instead of return_output if you want this to happen only when the pipe fails
# to complete normally. You can set different transports for aliases and
# forwards if you want to - see the references to address_pipe below.

address_directory:
  driver = pipe
  command = /usr/libexec/dovecot/dovecot-lda -f ${perl{untaint}{$sender_address}} -d ${perl{convert_address_directory_to_dovecot_lda_destination_username}} -m ${perl{convert_address_directory_to_dovecot_lda_mailbox}}
  message_prefix =
  message_suffix =
  log_output
  delivery_date_add
  envelope_to_add
  return_path_add
  temp_errors = 64 : 69 : 70: 71 : 72 : 73 : 74 : 75 : 78

address_pipe:
    driver = pipe
    return_output

virtual_address_pipe:
    driver = pipe
    return_output

jailed_address_pipe:
    driver = pipe
    force_command
    command = /usr/local/cpanel/bin/jailexec $address_pipe
    return_output

jailed_virtual_address_pipe:
    driver = pipe
    force_command
    command = /usr/local/cpanel/bin/jailexec $address_pipe
    return_output

cagefs_address_pipe:
    driver = pipe
    force_command
    command = /bin/cagefs_enter $address_pipe
    return_output

cagefs_virtual_address_pipe:
    driver = pipe
    force_command
    command = /bin/cagefs_enter $address_pipe
    return_output

# This transport is used for handling deliveries directly to files that are
# generated by aliassing or forwarding.

address_file:
    driver = pipe
    command = /usr/libexec/dovecot/dovecot-lda -e -f $sender_address -d ${perl{convert_address_directory_to_dovecot_lda_destination_username}} -m ${perl{convert_address_directory_to_dovecot_lda_mailbox}}
    message_prefix =
    message_suffix =
    log_output
    delivery_date_add
    envelope_to_add
    return_path_add
    temp_errors = 64 : 69 : 70: 71 : 72 : 73 : 74 : 75 : 78

boxtrapper_autowhitelist:
  driver = pipe
  headers_only
  command = /usr/local/cpanel/bin/boxtrapper --autowhitelist "${perl{untaint}{$authenticated_id}}"
  user = ${perl{getemailuser}{$authenticated_id}{$received_protocol}{$sender_ident}}
  group = ${extract{3}{:}{${lookup passwd{${perl{getemailuser}{$authenticated_id}{$received_protocol}{$sender_ident}}}{$value}}}}
  log_output = true
  return_fail_output = true
  return_path_add = false
  temp_errors = 64 : 69 : 70: 71 : 72 : 73 : 74 : 75 : 78

local_boxtrapper_delivery:
  driver = pipe
  command = /usr/local/cpanel/bin/boxtrapper "${perl{untaint}{$local_part_data}}" $home
  user = $local_part_data
  group = ${extract{3}{:}{${lookup passwd{$local_part_data}{$value}}}}
  log_output = true
  return_fail_output = true
  return_path_add = false
  temp_errors = 64 : 69 : 70: 71 : 72 : 73 : 74 : 75 : 78

virtual_boxtrapper_userdelivery:
  driver = pipe
  command = /usr/local/cpanel/bin/boxtrapper \
    "${perl{untaint}{$local_part}}@${perl{untaint}{$domain}}" \
    $home
  user = "${lookup{${perl{untaint}{$domain}}}lsearch{/etc/userdomains}{$value}}"
  log_output = true
  return_fail_output = true
  return_path_add = false
  temp_errors = 64 : 69 : 70: 71 : 72 : 73 : 74 : 75 : 78

dovecot_delivery:
    driver = lmtp
    socket = /var/run/dovecot/lmtp
    batch_max = 200
    batch_id = "$r_cpanel_user ${if def:r_bcc_addr {$r_bcc_addr}}"
    rcpt_include_affixes
    delivery_date_add
    envelope_to_add
    return_path_add

dovecot_virtual_delivery:
    driver = lmtp
    socket = /var/run/dovecot/lmtp
    batch_max = 200
    batch_id = "$r_cpanel_user ${if def:r_bcc_addr {$r_bcc_addr}}"
    rcpt_include_affixes
    delivery_date_add
    envelope_to_add
    return_path_add

address_reply:
    driver = autoreply

# cPanel Mail Archiving is disabled

######################################################################
#                      RETRY CONFIGURATION                           #
######################################################################

# This single retry rule applies to all domains and all errors. It specifies
# retries every 15 minutes for 2 hours, then increasing retry intervals,
# starting at 1 hour and increasing each time by a factor of 1.5, up to 16
# hours, then retries every 8 hours until 4 days have passed since the first
# failed delivery.

# Domain               Error       Retries
# ------               -----       -------

begin retry

+secondarymx           *           F,4h,5m; G,16h,1h,1.5; F,4d,8h
*                      *           F,2h,15m; G,16h,1h,1.5; F,4d,8h

# End of Exim 4 configuration

MR SKB