Hi, Is it possible for Exim to verify outgoing mail when using a smarthost? Specifically, I'm looking to have Exim verify (using dnslookup) that the domain exists for the recipient. If the domain returns NXDOMAIN (or some other DNS error), defer it, if DNS exists, continue with the routing. I tried the following:
# Verify the recipient domain exists in DNS before sending to the relay. verify_address: debug_print = "R: verify_address for $domain" driver = dnslookup domains = ! +local_domains verify_only smarthost: debug_print = "R: smarthost for $local_part@$domain" driver = manualroute domains = ! +local_domains transport = remote_smtp_smarthost route_list = * DCsmarthost byname host_find_failed = defer same_domain_copy_routing = yes no_verify no_more And it seems to work during testing: # exim -bv [email protected] [email protected] failed to verify: Unrouteable address # exim -bv [email protected] [email protected] verified However, when sending a test message to an NXDOMAIN, exim happily forwards it to the smarthost: 2016-08-03 08:07:28 1bUvtQ-0007bm-Vh <= root@somehost U=root P=local S=486 T="test" 2016-08-03 08:07:29 1bUvtQ-0007bm-Vh => [email protected] R=smarthost T=remote_smtp_smarthost S=505 H=ses-smtp-prod-335357831.us-east-1.elb.amazonaws.com[50.19.94.229] X=TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128 DN="C=US,ST=Washington,L=Seattle,O=Amazon.com\, Inc.,CN= email-smtp.us-east-1.amazonaws.com" 2016-08-03 08:07:29 1bUvtQ-0007bm-Vh Completed Is it possible for Exim to do outbound verification while using a smarthost? If so, what am I missing? Thanks -- ## 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/
