# flushing' operations, but should be populated with a list
# of trusted machines. Wildcards are not permitted
# bsmtp_domains - Domains that we deliver locally via bsmtp
+# submission-domains - Domains for which mail will be accepted via the
+# submission port
<%- if @is_mailrelay -%>
# mailhubdomains - Domains for which we are the MX, but the mail is relayed
# elsewhere. This is designed for use with small volume or
# that list.
<%- end -%>
+# From /var/lib/misc / UD:
+#
+# mail-forward.cdb - aliases for @d.o
+# user-forward.cdb - aliases for @thishost.d.o
+
# Exim's wildcard mechanism is a bit odd in that to say "any address in
# debian.org including debian.org" you must use two patterns,
# *.debian.org
localpartlist postmasterish = postmaster : abuse : hostmaster
-hostlist debianhosts = <; ; 127.0.0.1 ; ::1 ; /var/lib/misc/thishost/debianhosts ; 89.16.166.49 ; 82.195.75.76 ; 2001:41b8:202:deb:bab5:0:52c3:4b4c
+hostlist debianhosts = <; ; 127.0.0.1 ; ::1 ; /var/lib/misc/thishost/debianhosts
hostlist reservedaddrs = 0.0.0.0/8 : 127.0.0.0/8 : 10.0.0.0/8 : 169.254.0.0/16 : 172.16.0.0/12 : 192.0.0.0/24 : 192.168.0.0/16 : 224.0.0.0/4 : 240.0.0.0/5 : 248.0.0.0/5
+domainlist google_mxen = aspmx.l.google.com : gmail-smtp-in.l.google.com : \
+ *.aspmx.l.google.com : *.gmail-smtp-in.l.google.com
+
+domainlist single_domain_mx = +google_mxen
+domainlist ipv4_only_domain_mx = +google_mxen
+
<%- if @is_mailrelay -%>
# Domains we relay for; that is domains that aren't considered local but we
# accept mail for them.
# expensive, you can specify the networks for which a lookup is done, or
# remove the setting entirely.
host_lookup = *
-# dns_ipv4_lookup = !localhost (disabled upon sgrans request, zobel, 2010-03-16)
# If this option is set, then any process that is running as one of the
# listed users may pass a message to Exim and specify the sender's
gecos_pattern = ^([^,:]*)
gecos_name = $1
+# Do *not* include the body of the original message in a bounce
+# The combination of bounce_return_message and bounce_return_body
+# allows us to return only the headers within a bounce
+
+bounce_return_message = true
+bounce_return_body = false
+
# This tells Exim to immediately discard error messages (ie double bounces).
ignore_bounce_errors_after = 0s
auto_thaw = 1d
tls_advertise_hosts = *
smtp_enforce_sync = true
-log_selector = +tls_cipher +tls_peerdn +queue_time +deliver_time +smtp_connection +smtp_incomplete_transaction +smtp_confirmation +smtp_protocol_error
+log_selector = \
+ +tls_cipher \
+ +tls_peerdn \
+ +queue_time \
+ +queue_time_overall \
+ +deliver_time \
+ +received_recipients \
+ +sender_on_delivery \
+ +return_path_on_delivery \
+ +incoming_port \
+ +unknown_in_list \
+ +smtp_connection \
+ +smtp_incomplete_transaction \
+ +smtp_confirmation \
+ +smtp_syntax_error \
+ +smtp_no_mail \
+ +smtp_protocol_error
received_header_text = Received: ${if def:sender_rcvhost {from $sender_rcvhost\n\t}\
{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}\
{${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}}}} : \
${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}
<%- if @is_rtmaster -%>
+# This subject rewrite is embedded in double-quoted strings. As such, some of
+# the items need more escaping than usual, otherwise \N becomes simply "N" and
+# the following "\[" a literal "[".
+# Note that the lack of space in "Subject:${" is intentional, as the raw Subject
+# header will include the leading space, if present.
+RT_SUBJECT = Subject:${if and {{first_delivery}{match {${sg {$rh_Subject:}{\\n([ \\t])}{ }}}{\\N(?i)(.*?)\\[?debian rt\\]?[:\\t ]*(.*)\\N}}}{$1$2}{$h_subject:}}
RT_QUEUE_MAP = /srv/rt.debian.org/mail/rt_queue_map
<%- end -%>
deny
acl_getprofile:
- # This is a bad hack to reset the variable, by defining it be something
- # never referenced.
- warn set acl_m_rprf = $acl_m_undefined
+ # Determine the mail profile for this recipient.
+ # An empty string implies no match has been found.
+
+ warn set acl_m_rprf =
warn recipients = survey@popcon.debian.org
set acl_m_rprf = PopconMail
# These are in HELO acl so that they are only run once. They increment a counter,
# so we don't want it to increment per rcpt to.
+ # high trust
warn dnslists = list.dnswl.org&0.0.0.3
log_message = Hit on list.dnswl.org for $sender_host_address
set acl_c_scr = ${eval:$acl_c_scr-30}
+ # >= medium trust
warn dnslists = list.dnswl.org&0.0.0.2
log_message = Hit on list.dnswl.org for $sender_host_address
set acl_c_scr = ${eval:$acl_c_scr-20}
+ # any form of listing
warn dnslists = list.dnswl.org
log_message = Hit on list.dnswl.org for $sender_host_address
set acl_c_scr = ${eval:$acl_c_scr-10}
condition = ${if eq{$host_lookup_failed}{1}}
set acl_c_scr = ${eval:$acl_c_scr+20}
+ # HELO looks like a dynamic address (with RDNS match)
warn !hosts = +debianhosts
condition = ${if eq{$host_lookup_failed}{0}}
condition = ${if match{$sender_host_name}{\N(^[^\.]*[0-9]\-+[0-9]|^[^\.]*[0-9]{5,}[^\.]|^([^\.]+\.)?[0-9][^ \.]*\.[^\.]+\..+\.[a-z]|^[^\.]*[0-9]\.[^\.]*[0-9]-[0-9]|^(dyn|cable|dhcp|dialup|ppp|adsl)[^\.]*[0-9])\N}}
set acl_c_scr = ${eval:$acl_c_scr+20}
+ # HELO looks like a dynamic address
warn !hosts = +debianhosts
condition = ${if match{$sender_helo_name}{\N(^[^\.]*[0-9]\-+[0-9]|^[^\.]*[0-9]{5,}[^\.]|^([^\.]+\.)?[0-9][^ \.]*\.[^\.]+\..+\.[a-z]|^[^\.]*[0-9]\.[^\.]*[0-9]-[0-9]|^(dyn|cable|dhcp|dialup|ppp|adsl)[^\.]*[0-9])\N}}
set acl_c_scr = ${eval:$acl_c_scr+20}
+ # mail from a dynamic IP address range
warn !hosts = +debianhosts
dnslists = dul.dnsbl.sorbs.net
set acl_c_scr = ${eval:$acl_c_scr+15}
#!!# ACL that is used after the RCPT command on the submission port
check_submission:
- # Accept if the source is local SMTP (i.e. not over TCP/IP).
- # We do this by testing for an empty sending host field.
accept hosts = +debianhosts
<%- if @is_mailrelay -%>
hosts = !+debianhosts
message = mail from <$sender_address> not allowed externally
- deny condition = ${if match_domain{$sender_address_domain}{+virtual_domains}}
+ deny sender_domains= +virtual_domains
condition = ${if exists {${extract{directory}{VSENDERDOMAINDATA}{${value}/neversenders}}}}
condition = ${lookup{$sender_address_local_part}lsearch{${extract{directory}{VSENDERDOMAINDATA}{${value}/neversenders}}}{true}}
message = no mail should ever come from <$sender_address>
deny condition = ${if !eq {$acl_m_prf}{PopconMail}}
!verify = sender
+ warn !hosts = +debianhosts
+ condition = ${if !eq {$acl_m_prf}{PopconMail}}
+ condition = ${if >{${eval:$acl_c_scr+0}}{0}}
+ ratelimit = 10 / 60m / per_rcpt / strict / $sender_host_address
+ log_message = Sender rate $sender_rate / $sender_rate_period (limit: $sender_rate_limit)
+
defer !hosts = +debianhosts
condition = ${if !eq {$acl_m_prf}{PopconMail}}
condition = ${if >{${eval:$acl_c_scr+0}}{0}}
message = slow down (no reverse dns, mismatched ehlo, dialup, or in blacklists)
<%- if has_variable?("policydweight") && @policydweight -%>
- # Check with policyd-weight - this only works with a version after etch's,
- # sadly. etch's version attempts to hold the socket open, since that's what
- # postfix expects. Exim, on the other hand, expects the remote side to close
- # the socket when it's finished sending data, so it see each transaction as
- # an incomplete read. I'm sure there's a way we could force Exim to do
- # something sick and clever to force either the interpretation or the socket
- # closure, but I'm fairly sure it's now worth it, since the backport of
- # policyd-weight is trivial.
+ # Check with policyd-weight
warn !hosts = +debianhosts
condition = ${if !eq {$acl_m_prf}{PopconMail}}
set acl_m_pw = ${readsocket{inet:127.0.0.1:12525}\
protocol_name=${uc:$received_protocol}\n\
instance=${acl_m_grey}\n\
helo_name=${sender_helo_name}\n\
-<%- if scope.call_function('versioncmp', [@lsbmajdistrelease, '8']) <= 0 -%>
- client_address=${substr_-3:${mask:$sender_host_address/24}}\n\
-<%- else -%>
client_address=${sender_host_address}\n\
-<%- end -%>
client_name=${sender_host_name}\n\
sender=${sender_address}\n\
recipient=$local_part@$domain\n\n
${readsocket{/var/run/postgrey/socket}{$acl_m_pgr}\
{5s}{}{action=DUNNO}}\
}{action=}{}}
- message = ${sg{$acl_m_pgr}{^\\w+\\s*}{}}
+ message = ${sg{$acl_m_pgr}{\N^\w+\s*\N}{}}
log_message = greylisted.
condition = ${if eq{${uc:${substr{0}{5}{$acl_m_pgr}}}}{DEFER}}
domains = +handled_domains
local_parts = GREYLIST_LOCAL_PARTS
condition = ${if eq{${uc:${substr_0_7:$acl_m_pgr}}}{PREPEND}}
- message = ${sg{$acl_m_pgr}{^\\w+\\s*}{}}
+ message = ${sg{$acl_m_pgr}{\N^\w+\s*\N}{}}
<%- end -%>
deny hosts = ${if exists{/etc/exim4/host_blacklist}{/etc/exim4/host_blacklist}{}}
domains = +handled_domains
!hosts = +debianhosts : WHITELIST
+ deny message = host $sender_host_address is listed in $dnslist_domain; see $dnslist_text
+ dnslists = noserver.dnsbl.sorbs.net
+ domains = +handled_domains
+ !hosts = +debianhosts : WHITELIST
+
<%- end -%>
deny message = domain $sender_address_domain is listed in $dnslist_domain; see $dnslist_text
dnslists = ${if match_domain{$domain}{+virtual_domains}\
domains = +handled_domains
!hosts = +debianhosts : WHITELIST
+ deny message = domain $sender_address_domain is listed in $dnslist_domain; see $dnslist_text
+ dnslists = nomail.rhsbl.sorbs.net/$sender_address_domain
+ domains = +handled_domains
+ !hosts = +debianhosts : WHITELIST
+
<%- unless @use_smarthost -%>
deny domains = +handled_domains
local_parts = ${if match_domain{$domain}{+virtual_domains}\
condition = ${if !eq{$acl_m_srb}{false}}
message = X-Surbl-Hit: $primary_hostname: $acl_m_srb
+ # Dump MIME parts to disk. "default" creates sequentially-named files
+ # in <spool_directory>/scan/<message_id>/ which should then be
+ # automagically unlinked after processing.
+ warn decode = default
+
+ # Log some information about attachments for debugging
+ warn log_message = MIME part [$mime_part_count] -> [${extract{-1}{.}{${lc:$mime_filename}}}] [$mime_content_type]
+
accept
<%- end -%>
<%- if has_variable?("clamd") && @clamd -%>
discard condition = ${if eq {$acl_m_prf}{blackhole}}
- <%- if scope.call_function('versioncmp', [@lsbmajdistrelease, '8']) <= 0 -%>
- demime = *
- <%- end -%>
malware = */defer_ok
log_message = discarded malware message for $recipients
deny condition = ${if !eq {$acl_m_prf}{markup}}
condition = ${if !eq {$acl_m_prf}{PopconMail}}
- <%- if scope.call_function('versioncmp', [@lsbmajdistrelease, '8']) <= 0 -%>
- demime = *
- <%- end -%>
malware = */defer_ok
message = malware detected: $malware_name: message rejected
warn condition = ${if eq {$acl_m_prf}{markup}}
- <%- if scope.call_function('versioncmp', [@lsbmajdistrelease, '8']) <= 0 -%>
- demime = *
- <%- end -%>
malware = */defer_ok
message = X-malware detected: $malware_name
<%- if @is_mailrelay -%>
relay_manualroute:
+ debug_print = "R: relay_manualroute for $local_part@$domain"
driver = manualroute
domains = +mailhubdomains
- transport = remote_smtp
+ transport = ${if forany{${lookup dnsdb{>: mxh=$domain}}}\
+ {match_domain{$item}{+single_domain_mx}}\
+ {remote_smtp_single_domain}{remote_smtp}\
+ }
route_data = ${lookup{$domain}lsearch{/etc/exim4/manualroute}}
require_files = /etc/exim4/manualroute
debug_print = "R: dnslookup for $local_part@$domain"
driver = dnslookup
domains = !+handled_domains
- transport = remote_smtp
- ignore_target_hosts = +reservedaddrs
+ transport = ${if forany{${lookup dnsdb{>: mxh=$domain}}}\
+ {match_domain{$item}{+single_domain_mx}}\
+ {remote_smtp_single_domain}{remote_smtp}\
+ }
+ ignore_target_hosts = +reservedaddrs : \
+ ${if forany{${lookup dnsdb{>: mxh=$domain}}}\
+ {match_domain{$item}{+ipv4_only_domain_mx}}\
+ {::::/0}{}\
+ }
no_more
postmasterish:
pipe_transport = rt_pipe
data = "|/usr/bin/rt-mailgate --queue '${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}}' --url https://rt.debian.org/ --ca-file /etc/ssl/ca-debian/ca-certificates.crt --action ${if match{$local_part}{.*-comment.*}{comment}{correspond}}"
headers_remove = Subject
- headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nSubject: ${if and {{first_delivery}{match {$h_subject:}{(?is)(.*?)\\\\[?debian rt\\\\]?[:\\s]*(.*)}}} {$1$2}{$h_subject:}}"
+ headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nRT_SUBJECT"
# FIXME: figure out how to generalize this approach so that all of the following would work
# - rt+NNNN@rt.debian.org : attach correspondence to ticket (verbose)
pipe_transport = rt_pipe
data = "|/usr/bin/rt-mailgate --queue '${lookup{${sg{$local_part}{-comment}{}}}lsearch{RT_QUEUE_MAP}}' --url https://rt.debian.org/ --ca-file /etc/ssl/ca-debian/ca-certificates.crt --action ${if match{$local_part}{.*-comment.*}{comment}{correspond}}"
headers_remove = Subject
- headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nX-RT-Mode: quiesce\nSubject: ${if and {{first_delivery}{match {$h_subject:}{(?is)(.*?)\\\\[?debian rt\\\\]?[:\\s]*(.*)}}} {$1$2}{$h_subject:}}"
+ headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nX-RT-Mode: quiesce\nRT_SUBJECT"
rt_otherwise:
debug_print = "R: rt for $local_part@$domain"
pipe_transport = rt_pipe
data = "|/usr/bin/rt-mailgate --queue '${lookup{${sg{$local_part}{-(comment|done)}{}}}lsearch{RT_QUEUE_MAP}}' --url https://rt.debian.org/ --ca-file /etc/ssl/ca-debian/ca-certificates.crt --extension ticket --action ${if match{$local_part}{.*-comment.*}{comment}{${if match{$local_part}{.*-done.*}{correspond-resolve}{correspond}}}}"
headers_remove = Subject
- headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nSubject: ${if and {{first_delivery}{match {$h_subject:}{(?i)(.*?)\\\\[?debian rt\\\\]?[:\\s]*(.*)}}} {$1$2}{$h_subject:}}"
+ headers_add = "Delivered-To: ${local_part}${local_part_suffix}@${domain}\nRT_SUBJECT"
<%- end -%>
# Exim fails the router if it can't change to the user/group for delivery
# directory. (The alternative, which most other unixes use, is to deliver
# as the user's own group, into a sticky-bitted directory)
local_delivery:
+ debug_print = "T: local_delivery for $local_part@$domain"
driver = appendfile
file = /var/mail/${local_part}
group = mail
# want this to happen only when the pipe fails to complete normally.
address_pipe:
+ debug_print = "T: address_pipe for $local_part@$domain"
driver = pipe
current_directory = ${home}
environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
# mentioned elsewhere in this configuration file.
address_file:
+ debug_print = "T: address_file for $local_part@$domain"
driver = appendfile
return_path_add
address_file_group:
+ debug_print = "T: address_file_group for $local_part@$domain"
driver = appendfile
return_path_add
mode = 0660
# are passed to address_directory.
address_directory:
+ debug_print = "T: address_directory for $local_part@$domain"
driver = appendfile
check_string =
maildir_format
# option of the forwardfile director. It has a conventional name, since it
# is not actually mentioned elsewhere in this configuration file.
address_reply:
+ debug_print = "T: address_reply for $local_part@$domain"
driver = autoreply
# This transport is used for delivering messages over SMTP connections.
remote_smtp:
+ debug_print = "T: remote_smtp for $local_part@$domain"
+ driver = smtp
+ connect_timeout = 15s
+ delay_after_cutoff = false
+ tls_certificate = /etc/exim4/ssl/thishost.crt
+ tls_privatekey = /etc/exim4/ssl/thishost.key
+
+remote_smtp_single_domain:
+ debug_print = "T: remote_smtp_single_domain for $local_part@$domain"
driver = smtp
connect_timeout = 15s
delay_after_cutoff = false
+ no_multi_domain
tls_certificate = /etc/exim4/ssl/thishost.crt
tls_privatekey = /etc/exim4/ssl/thishost.key
<%- end -%>
# Send the message to procmail
procmail_pipe:
+ debug_print = "T: procmail_pipe for $local_part@$domain"
driver = pipe
command = /usr/bin/procmail -a ${substr_1:${local_part_suffix}}
return_path_add
user = ${local_part}
bsmtp:
+ debug_print = "T: bsmtp for $local_part@$domain"
driver = appendfile
batch_max = 100
file = ${host}
<%- if @is_bugsmx -%>
bugs_pipe:
+ debug_print = "T: bugs_pipe for $local_part@$domain"
driver = pipe
command = /srv/bugs.debian.org/mail/run-procmail
environment = "EXTENSION=${substr_1:${local_part_suffix}}:\
# 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 2 hours 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
+## Note that retry rules specify when an address / host / mail should
+## become eligible for retrying. They do not specify when the retry
+## attempt will actually occur, as this is dependent on queue run
+## frequency and timing.
+
+# For mail to debian.org addresses, this rule starts with
+# retries every 10 minutes for 2 hours, then increasing retry intervals,
+# starting at 2 hours and increasing each time by a factor of 1.5, up to 16
+# hours, then retries every 8 hours until 14 days have passed since the first
+# failed delivery.
debian.org * F,2h,10m; G,16h,2h,1.5; F,14d,8h
+
+# Bounces should get retried every 10 minutes for up to 2 hours
* * senders=: F,2h,10m
+
+# Temporary errors at RCPT TO get retried at 5 minute intervals for
+# 2 hours, then 10 minute intervals for 4 hours, and finally at 15
+# minute intervals for 4 days. This assumes that the cause of the
+# error will get resolved quickly in most cases.
* rcpt_4xx F,2h,5m; F,4h,10m; F,4d,15m
+
+# For all remaining mails, addresses and hosts, this rule starts with
+# retries every 15 minutes for 2 hours, then increasing retry intervals,
+# starting at 2 hours 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.
* * F,2h,15m; G,16h,2h,1.5; F,4d,8h
# End of Exim 4 configuration
projects / mirror / dsa-puppet.git / blobdiff