Hello, I know it’s fairly common for people to use postfix as a spam-eating/tagging gateway in environments where Exchange or some other MTA is mandatory. In my case, I’m fronting an old qmail/vpopmail setup which is probably never going to go away. Right now I have basic transport rules that force everything to qmail listening on an internal IP, and that works fine.
In the interest of efficiency and making sure I’m actually doing this correctly, is there any other option (especially with qmail, and on the same host) to inject the mail into qmail? smtp to smtp works, and I think I have my user/alias lookups working fine (vpopmail stores this in a db, postfix queries same db, and I run a policy server to verify quotas on primary and backup mx), but something about this seems a bit inefficient. Am I missing any options? I see postfix has a qmqp server, but not a client, not sure that if one existed that would be a better option or not. Is there anything else I should be looking at for both the handoff from postfix to qmail and any general gotchas when handing email off to a “hidden” server? Thanks, Charles
