2 ### router/200_exim4-config_primary
3 #################################
4 # This file holds the primary router, responsible for nonlocal mails
6 .ifdef DCconfig_internet
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
16 dnslookup_relay_to_domains:
17 debug_print = "R: dnslookup_relay_to_domains for $local_part@$domain"
19 domains = ! +local_domains : +relay_to_domains
20 transport = remote_smtp
21 same_domain_copy_routing = yes
22 dnssec_request_domains = *
25 # deliver mail directly to the recipient. This router is only reached
26 # for domains that we do not relay for. Since we most probably can't
27 # have broken MX records pointing to site local or link local IP
28 # addresses fixed, we ignore target hosts pointing to these addresses.
31 debug_print = "R: dnslookup for $local_part@$domain"
33 domains = ! +local_domains
34 transport = remote_smtp
35 same_domain_copy_routing = yes
36 # ignore private rfc1918 and APIPA addresses
37 ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8 : 192.168.0.0/16 :\
38 172.16.0.0/12 : 10.0.0.0/8 : 169.254.0.0/16 :\
40 dnssec_request_domains = *
49 # Stand-alone system, so generate an error for mail to a non-local domain
51 debug_print = "R: nonlocal for $local_part@$domain"
53 domains = ! +local_domains
55 data = :fail: Mailing to remote domains not supported
61 .ifdef DCconfig_smarthost DCconfig_satellite
62 # configtype=smarthost or configtype=satellite
64 # Send all non-local mail to a single other machine (smarthost).
66 # This means _ALL_ non-local mail goes to the smarthost. This will most
67 # probably not do what you want for domains that are listed in
68 # relay_domains. The most typical use for relay_domains is to control
69 # relaying for incoming e-mail on secondary MX hosts. In that case,
70 # it doesn't make sense to send the mail to the smarthost since the
71 # smarthost will probably send the message right back here, causing a
74 # If you want to use a smarthost while being secondary MX for some
75 # domains, you'll need to copy the dnslookup_relay_to_domains router
76 # here so that mail to relay_domains is handled separately.
79 debug_print = "R: smarthost for $local_part@$domain"
81 domains = ! +local_domains
82 transport = remote_smtp_smarthost
83 route_list = * DCsmarthost byname
84 host_find_failed = ignore
85 same_domain_copy_routing = yes
91 # The "no_more" above means that all later routers are for
92 # domains in the local_domains list, i.e. just like Exim 3 directors.