Currently my company is using Dovecot as an IMAP email server. We are currently setting up exchange to take its place, but since we have been using Dovecot we have had no problems. I want to try and keep Dovecot as our front end email server and use exchange 2007 as a back end email system. Is there away to keep Dovecot on the front end and have it relay email to exchange 2007 and then the users attached to exchange can get there mail from there. Is this possible and if so, how do I go about doing this? Any help would be great fully appreciated.