conf.d/router/200_exim4-config_primary

   1
   2 ### router/200_exim4-config_primary
   3 #################################
   4 # This file holds the primary router, responsible for nonlocal mails
   5
   6 .ifdef DCconfig_internet
   7 # configtype=internet
   8 #
   9 # deliver mail to the recipient if recipient domain is a domain we
  10 # relay for. We do not ignore any target hosts here since delivering to
  11 # a site local or even a link local address might be wanted here, and if
  12 # such an address has found its way into the MX record of such a domain,
  13 # the local admin is probably in a place where that broken MX record
  14 # could be fixed.
  15
  16 dnslookup_relay_to_domains:
  17   debug_print = "R: dnslookup_relay_to_domains for $local_part@$domain"
  18   driver = dnslookup
  19   domains = ! +local_domains : +relay_to_domains
  20   transport = remote_smtp
  21   same_domain_copy_routing = yes
  22   no_more
  23
  24 # deliver mail directly to the recipient. This router is only reached
  25 # for domains that we do not relay for. Since we most probably can't
  26 # have broken MX records pointing to site local or link local IP
  27 # addresses fixed, we ignore target hosts pointing to these addresses.
  28
  29 dnslookup:
  30   debug_print = "R: dnslookup for $local_part@$domain"
  31   driver = dnslookup
  32   domains = ! +local_domains
  33   transport = remote_smtp
  34   same_domain_copy_routing = yes
  35   # ignore private rfc1918 and APIPA addresses
  36   ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8 : 192.168.0.0/16 :\
  37                         172.16.0.0/12 : 10.0.0.0/8 : 169.254.0.0/16
  38   no_more
  39
  40 .endif
  41
  42
  43 .ifdef DCconfig_local
  44 # configtype=local
  45 #
  46 # Stand-alone system, so generate an error for mail to a non-local domain
  47 nonlocal:
  48   debug_print = "R: nonlocal for $local_part@$domain"
  49   driver = redirect
  50   domains = ! +local_domains
  51   allow_fail
  52   data = :fail: Mailing to remote domains not supported
  53   no_more
  54
  55 .endif
  56
  57
  58 .ifdef DCconfig_smarthost DCconfig_satellite
  59 # configtype=smarthost or configtype=satellite
  60 #
  61 # Send all non-local mail to a single other machine (smarthost).
  62 #
  63 # This means _ALL_ non-local mail goes to the smarthost. This will most
  64 # probably not do what you want for domains that are listed in
  65 # relay_domains. The most typical use for relay_domains is to control
  66 # relaying for incoming e-mail on secondary MX hosts. In that case,
  67 # it doesn't make sense to send the mail to the smarthost since the
  68 # smarthost will probably send the message right back here, causing a
  69 # loop.
  70 #
  71 # If you want to use a smarthost while being secondary MX for some
  72 # domains, you'll need to copy the dnslookup_relay_to_domains router
  73 # here so that mail to relay_domains is handled separately.
  74
  75 smarthost:
  76   debug_print = "R: smarthost for $local_part@$domain"
  77   driver = manualroute
  78   domains = ! +local_domains
  79   transport = remote_smtp_smarthost
  80   route_list = * DCsmarthost byname
  81   host_find_failed = defer
  82   same_domain_copy_routing = yes
  83   no_more
  84
  85 .endif
  86
  87
  88 # The "no_more" above means that all later routers are for
  89 # domains in the local_domains list, i.e. just like Exim 3 directors.