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                         255.255.255.255
  39   no_more
  40
  41 .endif
  42
  43
  44 .ifdef DCconfig_local
  45 # configtype=local
  46 #
  47 # Stand-alone system, so generate an error for mail to a non-local domain
  48 nonlocal:
  49   debug_print = "R: nonlocal for $local_part@$domain"
  50   driver = redirect
  51   domains = ! +local_domains
  52   allow_fail
  53   data = :fail: Mailing to remote domains not supported
  54   no_more
  55
  56 .endif
  57
  58
  59 .ifdef DCconfig_smarthost DCconfig_satellite
  60 # configtype=smarthost or configtype=satellite
  61 #
  62 # Send all non-local mail to a single other machine (smarthost).
  63 #
  64 # This means _ALL_ non-local mail goes to the smarthost. This will most
  65 # probably not do what you want for domains that are listed in
  66 # relay_domains. The most typical use for relay_domains is to control
  67 # relaying for incoming e-mail on secondary MX hosts. In that case,
  68 # it doesn't make sense to send the mail to the smarthost since the
  69 # smarthost will probably send the message right back here, causing a
  70 # loop.
  71 #
  72 # If you want to use a smarthost while being secondary MX for some
  73 # domains, you'll need to copy the dnslookup_relay_to_domains router
  74 # here so that mail to relay_domains is handled separately.
  75
  76 smarthost:
  77   debug_print = "R: smarthost for $local_part@$domain"
  78   driver = manualroute
  79   domains = ! +local_domains
  80   transport = remote_smtp_smarthost
  81   route_list = * DCsmarthost byname
  82   host_find_failed = defer
  83   same_domain_copy_routing = yes
  84   no_more
  85
  86 .endif
  87
  88
  89 # The "no_more" above means that all later routers are for
  90 # domains in the local_domains list, i.e. just like Exim 3 directors.