Hi Apologies for the naive question, but my Exim skills are now very rusty.
We've been unexpectedly jumped onto a new ip address for our domain and we have a problem with the address being cold. Consequently we've got about 1000 yahoo and aol emails backed up over the last day or so. Our service provider has provided us with a backup relay which we can use, but we'd prefer to only send aol and yahoo emails through them. We're using a simple setup using Debian's packaged configurations which I guess we will need to tweak. The Debian routers for our config (dc_eximconfig_configtype='internet') are as follows: dnslookup_relay_to_domains: debug_print = "R: dnslookup_relay_to_domains for $local_part@$domain" driver = dnslookup domains = ! +local_domains : +relay_to_domains transport = remote_smtp same_domain_copy_routing = yes no_more dnslookup: debug_print = "R: dnslookup for $local_part@$domain" driver = dnslookup domains = ! +local_domains transport = remote_smtp same_domain_copy_routing = yes ignore_target_hosts = 0.0.0.0 : 0000::0000/0 : 127.0.0.0/8 : 192.168.0.0/16 :\ 172.16.0.0/12 : 10.0.0.0/8 : 169.254.0.0/16 :\ 255.255.255.255 no_more What I believe I need to add is a block like this: dns_yahoo_aol: debug_print = "R: dnslookup_yahoo_aol for $local_part@$domain" driver = dnslookup domains = aol.com : yahoo.com transport = remote_smtp_smarthost route_list = mx.localrelay.com byname same_domain_copy_routing = yes no_more The normal Debian exim4 config has route_list = * DCsmarthost byname and host_find_failed = ignore but I don't know if those are worth retaining. Comments gratefully received. Rory -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/