>Sender address rejected: Unable to look up MX host example.com
this is the >I would like to know where this check is configured in main.cf, if it >can be disabled or better whitelisted by IP, I know that is an important >check but today I've an important customer that is not receiving mails >from a domain that has errors in it's MX records and the domain >administrator is sick in a hospital, I tried to whitelist the sender >server's IP in mta_clients_bw.map and the sender's domain in >from_senders_bw.map without success. hey, Adolfo, let me throw at you the trick you posted here: try putting that non-existent domain name in your IMGate hosts file, "fixing" their DNS problems. Len
