X-Git-Url: https://git.adam-barratt.org.uk/?a=blobdiff_plain;f=modules%2Fexim%2Ffiles%2Fcommon%2Fexim4.conf;h=1d2c4481b7f4c56a976ab59cad0d242220a0a2e0;hb=14d14644e6a24663d0d09777c7988b9d32190637;hp=b953e51fb79e6f8ad5632d0eaf0a5731dd899eb3;hpb=d3d73502392b2fe8063aa317713d3c1cc071ee1e;p=mirror%2Fdsa-puppet.git

diff --git a/modules/exim/files/common/exim4.conf b/modules/exim/files/common/exim4.conf
index b953e51fb..1d2c4481b 100644
--- a/modules/exim/files/common/exim4.conf
+++ b/modules/exim/files/common/exim4.conf
@@ -39,6 +39,12 @@
 #           us. This is primarily only usefull for emergancy 'queue
 #           flushing' operations, but should be populated with a list
 #           of trusted machines. Wildcards are not permitted
+#  mailhubdomains - Domains for which we are the MX, but the mail is relayed
+#           elsewhere.  This is designed for use with small volume or
+#           restricted machines that need to use a smarthost for mail
+#           traffic.  We will relay for them based on ssl cert validation
+#           but we need to teach exim how to route the mail to them.  This is
+#           that list.
 # The division of files is designed so that all hosts may share rcpthosts
 # and relayhosts, these could be replicated automatically if necessary.
 
@@ -115,6 +121,7 @@ localpartlist local_only_users = lsearch;/etc/exim4/localusers
 # accept mail for them.
 domainlist rcpthosts = partial-lsearch;/etc/exim4/rcpthosts
 hostlist debianhosts = 127.0.0.1 : net-lsearch;/var/lib/misc/thishost/debianhosts
+domainlist mailhubdomains = lsearch;/etc/exim4/manualroute
 
 .ifndef RESERVEDADDRS
 RESERVEDADDRS = 0.0.0.0/8 : 127.0.0.0/8 : 10.0.0.0/8 : 169.254.0.0/16 : \
@@ -190,7 +197,7 @@ queue_list_requires_admin = false
 av_scanner = CLAMAV
 .endif
 
-.ifdef HAVE_USER_DEBBUGS
+.ifdef HAVE_USER_DEBBUGS MAIL_RELAY STUPID_FIREWALL
 daemon_smtp_ports = 25 : 587
 .endif
 
@@ -309,9 +316,16 @@ check_helo:
 #!!# 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 = : 127.0.0.1
   # Defer after too many bad RCPT TO's.  Legit MTAs will retry later.
   # This is a rough pass at preventing addres harvesting or other mail blasts.
 
+.ifdef MAIL_RELAY
+  accept  verify   = certificate
+.endif
+
   defer  log_message   = Too many bad recipients ${eval:$rcpt_fail_count} out of $rcpt_count
          message       = Too many bad recipients, try again later
          condition     = ${if > {${eval:$rcpt_fail_count}}{3}{yes}{no}}
@@ -320,6 +334,16 @@ check_submission:
           ratelimit      = 5 / 60m / per_rcpt / $sender_host_address
           message        = sorry, only 5 reports per hour for submission
 
+  accept  domains  = +localhost
+          endpass
+	  message  = unknown user
+	  verify   = recipient
+
+  accept  domains  = +mailhubdomains
+          endpass
+	  message  = unknown user
+	  verify   = recipient/callout=30s,defer_ok,use_sender,no_cache
+
   accept  domains  = +submission_domains
           endpass
 	  message  = unknown user
@@ -330,6 +354,10 @@ check_submission:
 #!!# ACL that is used after the RCPT command
 check_recipient:
 
+.ifdef MAIL_RELAY
+  accept  verify   = certificate
+.endif
+
   # Defer after too many bad RCPT TO's.  Legit MTAs will retry later.
   # This is a rough pass at preventing addres harvesting or other mail blasts.
 
@@ -607,6 +635,11 @@ check_recipient:
           !hosts   = +debianhosts : WHITELIST
 	  !verify  = sender/callout
 
+  accept  domains  = +mailhubdomains
+          endpass
+	  message  = unknown user
+	  verify   = recipient/callout=30s,defer_ok,use_sender,no_cache
+
   accept  domains  = +handled_domains
           endpass
 	  message  = unknown user
@@ -723,6 +756,13 @@ begin routers
 #     An address is passed to each in turn until it is accepted.     #
 ######################################################################
 
+relay_manualroute:
+  driver = manualroute
+  domains = +mailhubdomains
+  transport = remote_smtp
+  route_data = ${lookup{$domain}lsearch{/etc/exim4/manualroute}}
+  require_files = /etc/exim4/manualroute
+
 bsmtp:
   debug_print = "R: bsmtp for $local_part@$domain"
   driver = manualroute
@@ -743,6 +783,17 @@ ipliteral:
   transport = remote_smtp
   ignore_target_hosts = +reservedaddrs
 
+.ifdef SMARTHOST
+smarthost:
+  debug_print = "R: smarthost for $local_part@$domain"
+  driver = manualroute
+  domains = !+handled_domains
+  transport = remote_smtp_smarthost
+  route_list = * SMARTHOST
+  host_find_failed = defer
+  same_domain_copy_routing = yes
+  no_more
+.endif
 # This router routes to remote hosts over SMTP using a DNS lookup.
 # Ignore reserved network responses, including localhost.
 dnslookup:
@@ -1129,11 +1180,20 @@ remote_smtp:
   driver = smtp
   connect_timeout = 1m
 .ifdef USE_TLS
-  tls_tempfail_tryclear = true
   tls_certificate = /etc/exim4/ssl/thishost.crt
   tls_privatekey = /etc/exim4/ssl/thishost.key
-  tls_verify_certificates = /etc/exim4/ssl/ca.crt
-  tls_crl = /etc/exim4/ssl/ca.crl
+.endif
+
+remote_smtp_smarthost:
+  debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
+  driver = smtp
+.ifdef SMARTHST_PORT
+  port = SMARTHST_PORT
+.endif
+.ifdef USE_TLS
+  tls_tempfail_tryclear = false
+  tls_certificate = /etc/exim4/ssl/thishost.crt
+  tls_privatekey = /etc/exim4/ssl/thishost.key
 .endif
 
 # Send the message to procmail