I have a postfix relay server that sends all mails to a relayhost.Problem is that some domains , whose MX is all same, are not accepting mails from that relayhost for now.
Until that issue is resolved I want to route all such domains mails ( where MX is pointing to a particular host ) via a different network.
I dont have a list of all such domains , only the MX host is known Can there be any such configuration in postfix Thanks Ram
