> * autoresponders i forward (in remote_aliases) user@domain --> user@autoreply.domain (autoreply.domain is a "local:" transport), then i put user in /etc/aliases and pipe the mails into rom (reply-o-matic from http://sourceforge.net/projects/reply-o-matic/). works fine, although a bit cumbersome to administer (working on a web-based admin tool, but ... ) hth, nico