[vacri]

Google Apps allows you to create groups for free, or you can alias individual mailboxes (if you're okay with thing@ going to just one person). No need to run through your own middlebox. You do need to make sure that external people can send to the given group, though.

[pilif]

Yeah. I know - but I also wanted the free backups with instant-imapd support for when Google decides that they want to cancel our account for $REASONS and we won't have anybody to call (to this day still my biggest worry with google apps)