It works for me without a port number, so the bug as written is incorrect. Port number is NOT required. Adding the port number is a workaround for some other issue, so my advice is to figure out what that is.
-- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/769514 Title: Mail not sent unless relayhost has a port number -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs