[Mailman-Users] Mailman: postfix and/or apache on remote machines?

:-)

I'm afraid documentation doesn't say it clearly:

I'm thinking of running web server and mail server on separate virtual machines (separate hosts). I'd like to install mailman on one of those hosts or on a separate VM. Does mailman require postfix and apache on the same host (as mailman)? Can it use a remote mail or a remote web server? Configuration doesn't provide such examples but doesn't say clearly it is impossible...

Best regards, Marek