Ok, I know this is mainly a Windows based place, but I gotta ask this... Does anyone here have experience with IMAP and Mercur Mail Server by Atrium Software? I have one that the IMAP service keeps shutting down on and can't figure out why. I'm told Outlook Express, which is the client of choice for these users, doesn't work well with IMAP and this may be what is causing the service shutdown. I'm a little more than skeptical about this answer though.