>Our mail system are built like this > >2 incoming gateway servers in front of > >Imail servers > >using an Imgate server as outgoing gateway >but this server is not registered in dns as a mx for any of the domains >using it > >so some are now complaning that spamassin are rejecting there mail because >of that
They are confused and/or their SA is screwed up. The requirements for your outbound IP are the same as for any outbound, and have nothing to do with any other mail domain. 1. IP of outbound MTA must have PTR hostname which ... 2. has a matching A record. 3. outbound IP says helo, preferably, with PTR hostname. 4. the PTR hostname has its own MX record and 5. the IP accepts : RCPT TO: [EMAIL PROTECTED] RCPT TO: [EMAIL PROTECTED] >Is that correct or do i have to put that in every single zone ? none your zones or Imail domains have anything at all to do with the setup of the above outbound. Len
