open source email archiving software?
I am trying to find a quality and still maintained open source email archiving solution. Unfortunately the zimbras archiving solution is just a bit to expensive for my taste at $24 per user. Not sure what the partner pricing is though as my provider doesnt offer the ZAD licenses. Probably one that works as a smtp proxy is best, though I am really not on the admin side of things, so I could be wrong. The only project I know of so far that comes with a web gui is MailArchiva Email Archiving & Email Compliance Features, but its open source version is pretty limited. Ive googled quite a bit and havent found much, so just figured I would ask here in case someone knew of something I might have missed that was good.