Hi List, I have a postfix server currently relaying all mails to our ISP mailsserver. As we had a crash in one of our big services, our ISP mailserver saw this extensivated traffic as spam (due to reputaions based filtering) and blacklisted my postfix relayhost...:-(! I have double-checked that we are not spamming, and we are only sending to internal or "known" vendor emails.
As 99,96% of all our mail is to internal users (*@internal_mail.com), I would like to relay these directly to our official mailserver, and still keep relaying external mails (anything but *@internal_mail.com) to our ISP mailserver. Is it possible to do this in postfix, or can I only have 1 relayhost configured at a time ? If possible - how can this be done. Thanks in advance :-) ! ~maymann
