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#!!# 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 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 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_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_quit = acl_smtp_quit acl_smtp_notquit = acl_smtp_notquit acl_smtp_rcpt = acl_smtp_rcpt 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 deliver_queue_load_max = 156 queue_only_load = 312 daemon_smtp_ports = 25 : 587 : 465 tls_on_connect_ports = 465 system_filter_user = cpaneleximfilter system_filter_group = cpaneleximfilter tls_require_ciphers = ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS spamd_address = 127.0.0.1 783 retry=30s tmo=3m tls_certificate = ${if exists {/etc/mail_sni_map} {${extract{crtfile}{${lookup {$tls_sni} lsearch {/etc/mail_sni_map} {$value}}}{$value}{/etc/exim.crt}}} {/etc/exim.crt}} tls_privatekey = ${if exists {/etc/mail_sni_map} {${extract{keyfile}{${lookup {$tls_sni} lsearch {/etc/mail_sni_map} {$value}}}{$value}{/etc/exim.key}}} {/etc/exim.key}} tls_verify_certificates = ${if exists {/etc/mail_sni_map} {${extract{cabundle}{${lookup {$tls_sni} lsearch {/etc/mail_sni_map} {$value}}}{$value}{}}} {}} # +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. ###################################################################### # 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. openssl_options = +no_sslv2 +no_sslv3 # 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: 10.72 # 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 #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 delay_unknown_hosts warn !hosts = : +neighbor_netblocks : +loopback : +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 = +trustedmailhosts accept condition = ${if match_ip{$sender_host_address}{iplsearch;/etc/trustedmailhosts}{1}{0}} accept hosts = : +recent_authed_mail_ips : +loopback : +backupmx_hosts 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 = +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 # 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 accept hosts = * authenticated = * accept hosts = +trustedmailhosts accept condition = ${if match_ip{$sender_host_address}{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 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 = ${if eq {${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: $spam_report add_header = X-Spam-Flag: YES set acl_m2 = 1 warn 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 = ${if eq {${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: $spam_report 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 # 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 accept # 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 accept # END INSERT default_smtp_helo #END ACL_SMTP_HELO_POST_BLOCK acl_smtp_mail: #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 # 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 accept # 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 #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 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 delay_unknown_hosts warn !authenticated = * !hosts = : +neighbor_netblocks : +loopback : +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_RECIPIENT_BLOCK # BEGIN INSERT default_recipient accept hosts = : accept hosts = +skipsmtpcheck_hosts # END INSERT default_recipient #END ACL_RECIPIENT_BLOCK #mailman only #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 hosts = * authenticated = * condition = ${if eq{${lookup{$sender_address_domain}lsearch{/etc/userdomains}{$value}}}{$sender_address_local_part}{1}{0}} # deny must be on the same line as hosts so it will get removed by buildeximconf if turned off deny hosts = ! +senderverifybypass_hosts ! verify = sender accept hosts = * authenticated = * # if they used "pop before smtp" and its not bound for a localdomain we remember the recent_authed_mail_ips_domain warn hosts = +recent_authed_mail_ips domains = ! +local_domains 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 = +recent_authed_mail_ips # we need to check alwaysrelay since we don't require recentauthedmailiptracker to be enabled warn 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 accept condition = $acl_c_alwaysrelay #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 = ${if def:acl_c_authenticated_local_user {0}{${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}} # drop connections to localhost that are from demo accounts (required for manual connections) drop condition = ${if and {{match_ip{$sender_host_address}{+loopback}} \ {def:acl_c_authenticated_local_user}} \ {${lookup{$acl_c_authenticated_local_user}lsearch{/etc/demousers}{yes}{no}}}{no}} message = Demo accounts may not send mail # drop connections to localhost that fail auth (required for Horde) drop condition = ${if and {{match_ip{$sender_host_address}{+loopback}} \ {def:authentication_failed}} \ {$authentication_failed}{no}} message = Authentication failed # we learned this in the acl_smtp_mail block accept condition = ${if def:acl_c_authenticated_local_user {yes}{no}} # END INSERT default_identify_sender # BEGIN INSERT default_message_submission # 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 verifications are required for all messages that are not sent to the local machine #this was done at multiple users requests require verify = recipient # 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 #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 = ! ${primary_hostname} : +local_domains condition = ${if <= {$message_size}{200K}{${if eq {${acl_m0}}{1}{0}{${if exists{/etc/global_spamassassin_enable}{1}{${if exists{${extract{5}{::}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}/.spamassassinenable}{1}{0}}}}}}}{0}} set acl_m0 = 1 set acl_m1 = ${lookup{$domain}lsearch{/etc/userdomains}{$value}} warn domains = ${primary_hostname} condition = ${if <= {$message_size}{200K}{${if eq {${acl_m0}}{1}{0}{${if exists{/etc/global_spamassassin_enable}{1}{${if exists{${extract{5}{::}{${lookup passwd{$local_part}{$value}}}}/.spamassassinenable}{1}{0}}}}}}}{0}} set acl_m0 = 1 set acl_m1 = $local_part # END INSERT default_spam_scan_check #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 = : +neighbor_netblocks : +loopback : +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}}} # 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 #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}} ###################################################################### # 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. deliver_local_outside_jail: driver = manualroute condition = ${if exists {/jail_owner}{1}{0}} # users outside the jail will not be in /etc/passwd => We need to check if $local_part is in /jail_owner # we can't just check to see if they exist # because we still want to be able to mail root domains = +local_domains transport = remote_smtp route_list = "* 127.0.0.1" # self = send allows us to send outside the jail # we make sure /home/virtfs does not exist before we get here # to be safe self = send # Place holder democheck: driver = redirect require_files = "+/etc/demouids" condition = "${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 # 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 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 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 = "${perl{increment_max_emails_per_hour_if_needed}}" data = ":unknown:" # # reject_forwarded_mail_marked_as_spam is not included # because no_forward_outbound_spam and no_forward_outbound_spam_over_int # are both disabled # # # Lookup host router for remote smtp and ignores verisign site finder 'service' # This matches lookup exactly except we look for X-Precedence and Precedence so # we can determinte what is an auto responder message in the log. # Note: there is nothing to # prevent X-Precedence from being added to non-autoresponded messages so this is for # logging reasons only # # Note: Boxtrapper sets Precedence to auto_reply # autoreply_dkim_lookuphost: driver = dnslookup domains = ! +local_domains condition = "${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 require_files = "+/var/cpanel/domain_keys/private/${lc::$sender_address_domain}" headers_add = "${perl{mailtrapheaders}}" transport = dkim_remote_smtp # # Lookup host router for remote smtp and ignores verisign site finder 'service' and uses domain keys # dkim_lookuphost: driver = dnslookup domains = ! +local_domains #ignore verisign to prevent waste of bandwidth ignore_target_hosts = +loopback : 64.94.110.0/24 require_files = "+/var/cpanel/domain_keys/private/${lc::$sender_address_domain}" headers_add = "${perl{mailtrapheaders}}" transport = dkim_remote_smtp # # 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_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: driver = dnslookup domains = ! +local_domains #ignore verisign to prevent waste of bandwidth ignore_target_hosts = +loopback : 64.94.110.0/24 headers_add = "${perl{mailtrapheaders}}" transport = remote_smtp # This router routes to remote hosts over SMTP by explicit IP address, # given as a "domain literal" in the form [nnn.nnn.nnn.nnn]. The RFCs # require this facility, which is why it is enabled by default in Exim. # If you want to lock it out, set forbid_domain_literals in the main # configuration section above. # # Literal Transports .. ignores verisigns sitefinder service # literal: driver = ipliteral domains = ! +local_domains ignore_target_hosts = +loopback : 64.94.110.0/24 headers_add = "${perl{mailtrapheaders}}" transport = remote_smtp #!!# 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 = ":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 = !$primary_hostname require_files = "+/etc/vfilters/${domain}" condition = "${extract{size}{${stat:/etc/vfilters/${domain}}}}" file = /etc/vfilters/${domain} file_transport = address_file directory_transport = address_directory pipe_transport = ${if forall{/bin/cagefs_enter:/usr/sbin/cagefsctl}{exists{$item}}{cagefs_virtual_address_pipe}{${if match{${extract{6}{:}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}}{\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}lsearch{/etc/userdomains}{$value}}}{$value}}}} user = "${lookup{$domain}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{$local_part}lsearch{/etc/domainusers}{$value}}}{}{0}{${if exists {/etc/vfilters/${lookup{$local_part}lsearch{/etc/domainusers}{$value}}}{${extract{size}{${stat:/etc/vfilters/${lookup{$local_part}lsearch{/etc/domainusers}{$value}}}}}}{0}}}} file = "/etc/vfilters/${lookup{$local_part}lsearch{/etc/domainusers}{$value}}" directory_transport = address_directory file_transport = address_file pipe_transport = ${if forall{/bin/cagefs_enter:/usr/sbin/cagefsctl}{exists{$item}}{cagefs_address_pipe}{${if match{${extract{6}{:}{${lookup passwd{$local_part}{$value}}}}}{\N(jail|no)shell\N}{jailed_address_pipe}{address_pipe}}}} reply_transport = address_reply user = $local_part group = $local_part 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}{$value}}}}/etc/filter" condition = "${extract{size}{${stat:${extract{5}{::}{${lookup passwd{$local_part}{$value}}}}/etc/filter}}}" file = "${extract{5}{::}{${lookup passwd{$local_part}{$value}}}}/etc/filter" router_home_directory = ${extract{5}{::}{${lookup passwd{$local_part}{$value}}}} directory_transport = address_directory file_transport = address_file pipe_transport = ${if forall{/bin/cagefs_enter:/usr/sbin/cagefsctl}{exists{$item}}{cagefs_virtual_address_pipe}{${if match{${extract{6}{:}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}}{\N(jail|no)shell\N}{jailed_virtual_address_pipe}{virtual_address_pipe}}}} reply_transport = address_reply user = $local_part group = $local_part local_part_suffix = +* local_part_suffix_optional retry_use_local_part no_verify # # User Level Filtering for virtual users # virtual_user_filter: driver = redirect allow_filter allow_fail forbid_filter_run forbid_filter_perl forbid_filter_lookup forbid_filter_readfile forbid_filter_readsocket no_check_local_user domains = !$primary_hostname require_files = "+/etc/valiases/$domain:+${extract{5}{::}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}/etc/$domain/$local_part/filter" router_home_directory = ${extract{5}{::}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}} condition = "${extract{size}{$home/etc/$domain/$local_part/filter}}}" file = "$home/etc/$domain/$local_part/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}{${if match{${extract{6}{:}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}}{\N(jail|no)shell\N}{jailed_virtual_address_pipe}{virtual_address_pipe}}}} reply_transport = address_reply user = "${lookup{$domain}lsearch{/etc/userdomains}{$value}}" local_part_suffix = +* local_part_suffix_optional retry_use_local_part no_verify virtual_aliases_nostar: driver = redirect allow_defer allow_fail domains = !$primary_hostname require_files = "+/etc/valiases/$domain" address_data = ${lookup{$local_part@$domain}lsearch{/etc/valiases/$domain}} data = $address_data file_transport = address_file pipe_transport = ${if forall{/bin/cagefs_enter:/usr/sbin/cagefsctl}{exists{$item}}{cagefs_virtual_address_pipe}{${if match{${extract{6}{:}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}}{\N(jail|no)shell\N}{jailed_virtual_address_pipe}{virtual_address_pipe}}}} retry_use_local_part unseen virtual_user_overquota: driver = redirect domains = !$primary_hostname require_files = "+/etc/valiases/$domain:+$home/etc/$domain" user = "${lookup{$domain}lsearch{/etc/userdomains}{$value}}" router_home_directory = ${extract{5}{::}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}} condition = "${if exists {$home/etc/$domain/quota}{${if > {${lookup{$local_part}lsearch{$home/etc/$domain/quota}{$value}{0}}}{0}{${if match {${readsocket{/var/run/dovecot/quota-status}{request=smtpd_access_policy\nrecipient=${quote:$local_part}@${quote:$domain}\nsize=$message_size\n\n}{3s}{\n}{SOCKETFAIL}}}{action=5}{true}{false}}}{false}}}{false}}" data = ":fail:Mailbox is full / Blocks limit exceeded / Inode limit exceeded" no_verify allow_fail # # Virtual User Spam Boxes # virtual_user_spam: driver = redirect domains = !$primary_hostname require_files = "+/etc/valiases/$domain:+${extract{5}{::}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}/.spamassassinboxenable:+${extract{5}{::}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}/mail/$domain/$local_part" condition = ${if match{$h_X-Spam-Status:}{\N^Yes\N}{true}{false}} headers_remove="x-uidl" data = "$local_part+spam@$domain" redirect_router = virtual_user virtual_boxtrapper_user: driver = accept domains = !$primary_hostname require_files = "+/etc/valiases/$domain:+/usr/local/cpanel/bin/boxtrapper:+${extract{5}{::}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}/etc/$domain/$local_part/.boxtrapperenable:+${extract{5}{::}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}/mail/$domain/$local_part" user = "${lookup{$domain}lsearch{/etc/userdomains}{$value}}" router_home_directory = ${extract{5}{::}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}} headers_remove="x-uidl" transport = virtual_boxtrapper_userdelivery virtual_user: driver = accept domains = !$primary_hostname require_files = "+/etc/valiases/$domain:+${extract{5}{::}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}/mail/$domain/$local_part" router_home_directory = ${extract{5}{::}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}} headers_remove="x-uidl" local_part_suffix = +* local_part_suffix_optional user = mailnull group = mail transport = ${if or {{def:header_Precedence:}{def:header_List-Id:}{forany {${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@$original_domain}}}}}}{dovecot_virtual_delivery}{dovecot_virtual_delivery_no_batch}} # # If the delivery address, original address (forwarded), # or address with subaddress is shown on the To: or Cc: # lines or the message has the List-Id: or Precedence: # header we allow the message to be batched to # dovecot LMTP via transport dovecot_virtual_delivery # # If it does match match the above we do not allow the message # to be batched in order to ensure that the Envelope-To: header # does not contain a user that was Bcc:ed so savvy recipients # cannot see that another email was Bcc:ed in the header # via transport dovecot_virtual_delivery_no_batch # # Note: match_address would be nice here but the second string # is not expanded for security reasons # has_alias_but_no_mailbox_discarded_to_prevent_loop: driver = redirect domains = !$primary_hostname require_files = "+/etc/valiases/$domain" condition = "${perl{checkvalias}{$domain}{$local_part}}" data="#Exim Filter\nseen finish" user = "${lookup{$domain}lsearch{/etc/userdomains}{$value}}" allow_filter local_part_suffix = +* local_part_suffix_optional disable_logging = true valias_domain_file: driver = redirect allow_defer allow_fail require_files = +/etc/vdomainaliases/$domain condition = ${lookup {$domain} lsearch {/etc/vdomainaliases/$domain}{yes}{no} } address_data = $local_part@${lookup {$domain} lsearch {/etc/vdomainaliases/$domain} } data = $address_data virtual_aliases: driver = redirect allow_defer allow_fail domains = !$primary_hostname require_files = "+/etc/valiases/$domain" address_data = ${lookup{*}lsearch{/etc/valiases/$domain}} data = $address_data file_transport = address_file pipe_transport = ${if forall{/bin/cagefs_enter:/usr/sbin/cagefsctl}{exists{$item}}{cagefs_virtual_address_pipe}{${if match{${extract{6}{:}{${lookup passwd{${lookup{$domain}lsearch{/etc/userdomains}{$value}}}{$value}}}}}{\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 address_data = ${lookup{$local_part}lsearch{/etc/aliases}} data = $address_data file_transport = address_file pipe_transport = address_pipe # user = exim local_aliases: driver = redirect allow_defer allow_fail domains = $primary_hostname address_data = ${lookup{$local_part}lsearch{/etc/localaliases}} data = $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}{${if match{${extract{6}{:}{${lookup passwd{$local_part}{$value}}}}}{\N(jail|no)shell\N}{jailed_address_pipe}{address_pipe}}}} reply_transport = address_reply directory_transport = address_directory user = $local_part group = $local_part no_verify # srs is disabled localuser_root: driver = redirect allow_fail domains = $primary_hostname check_local_user condition = ${if eq {$local_part}{root}} data = :fail: root cannot accept local mail deliveries localuser_overquota: driver = redirect domains = $primary_hostname check_local_user condition = "${if match {${readsocket{/var/run/dovecot/quota-status}{request=smtpd_access_policy\nrecipient=${quote:$local_part}\nsize=$message_size\n\n}{3s}{\n}{SOCKETFAIL}}}{action=5}{true}{false}}" data = ":fail:Mailbox is full / Blocks limit exceeded / Inode limit exceeded" no_verify 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 = "$local_part+spam" redirect_router = localuser boxtrapper_localuser: driver = accept require_files = "+/usr/local/cpanel/bin/boxtrapper:+$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 = ${if or {{def:header_Precedence:}{def:header_List-Id:}{forany {${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}}}}}}{dovecot_delivery}{dovecot_delivery_no_batch}} # # 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 # Place holder remote_smtp: driver = smtp interface = <; ${if exists {/etc/mailips}{${lookup{$sender_address_domain}lsearch{/etc/mailips}{$value}{${lookup{$sender_address_domain}lsearch{/etc/mailips}{$value}{${lookup{${perl{get_sender_from_uid}}}lsearch*{/etc/mailips}{$value}{}}}}}}}} helo_data = ${if exists {/etc/mailhelo}{${lookup{$sender_address_domain}lsearch{/etc/mailhelo}{$value}{${lookup{$sender_address_domain}lsearch{/etc/mailhelo}{$value}{${lookup{${perl{get_sender_from_uid}}}lsearch*{/etc/mailhelo}{$value}{$primary_hostname}}}}}}}{$primary_hostname}} dkim_remote_smtp: driver = smtp interface = <; ${if exists {/etc/mailips}{${lookup{${lc:$sender_address_domain}}lsearch{/etc/mailips}{$value}{${lookup{${lc:$sender_address_domain}}lsearch{/etc/mailips}{$value}{${lookup{${perl{get_sender_from_uid}}}lsearch*{/etc/mailips}{$value}{}}}}}}}} helo_data = ${if exists {/etc/mailhelo}{${lookup{${lc:$sender_address_domain}}lsearch{/etc/mailhelo}{$value}{${lookup{${lc:$sender_address_domain}}lsearch{/etc/mailhelo}{$value}{${lookup{${perl{get_sender_from_uid}}}lsearch*{/etc/mailhelo}{$value}{$primary_hostname}}}}}}}{$primary_hostname}} dkim_domain = ${lc:$sender_address_domain} dkim_selector = default dkim_private_key = "/var/cpanel/domain_keys/private/${dkim_domain}" dkim_canon = relaxed # 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 $sender_address -d ${perl{convert_address_directory_to_dovecot_lda_destination_username}} -m ${perl{convert_address_directory_to_dovecot_lda_mailbox}} message_prefix = message_suffix = log_output delivery_date_add envelope_to_add return_path_add # JTK can't these files take comments? If so they would make reading these files a lot easier, I think. temp_errors = 64 : 69 : 70: 71 : 72 : 73 : 74 : 75 : 78 address_pipe: driver = pipe return_output virtual_address_pipe: driver = pipe return_output user = "${lookup{$domain}lsearch{/etc/userdomains}{$value}}" 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 $address_pipe user = "${lookup{$domain}lsearch{/etc/userdomains}{$value}}" 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 $address_pipe user = "${lookup{$domain}lsearch{/etc/userdomains}{$value}}" 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 ${perl{convert_address_directory_to_dovecot_lda_mailbox}} message_prefix = message_suffix = log_output delivery_date_add envelope_to_add return_path_add temp_errors = 64 : 69 : 70: 71 : 72 : 73 : 74 : 75 : 78 # For email with a bcc: dovecot_delivery_no_batch: driver = lmtp socket = /var/run/dovecot/lmtp batch_max = 1 rcpt_include_affixes delivery_date_add envelope_to_add return_path_add # For email with a bcc: dovecot_virtual_delivery_no_batch: driver = lmtp socket = /var/run/dovecot/lmtp batch_max = 1 rcpt_include_affixes delivery_date_add envelope_to_add return_path_add boxtrapper_autowhitelist: driver = pipe headers_only command = /usr/local/cpanel/bin/boxtrapper --autowhitelist "${authenticated_id}" user = ${perl{getemailuser}{$authenticated_id}{$received_protocol}{$sender_ident}} group = ${extract{3}{:}{${lookup passwd{${perl{getemailuser}{$authenticated_id}{$received_protocol}{$sender_ident}}}{$value}}}} log_output = true current_directory = "/tmp" return_fail_output = true return_path_add = false local_boxtrapper_delivery: driver = pipe command = /usr/local/cpanel/bin/boxtrapper "${local_part}" $home user = $local_part group = ${extract{3}{:}{${lookup passwd{$local_part}{$value}}}} log_output = true current_directory = "/tmp" return_fail_output = true return_path_add = false virtual_boxtrapper_userdelivery: driver = pipe command = /usr/local/cpanel/bin/boxtrapper "${local_part}@${domain}" $home user = "${lookup{$domain}lsearch{/etc/userdomains}{$value}}" log_output = true current_directory = "/tmp" return_fail_output = true return_path_add = false dovecot_delivery: driver = lmtp socket = /var/run/dovecot/lmtp batch_max = 200 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 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 * * F,2h,15m; G,16h,1h,1.5; F,4d,8h # End of Exim 4 configuration