Hi Mike, I sorta thought that someone on this list was running the imap server that comes with S.L.. It's not looking like it. I currently haven't ever run it, so I don't know of any downfalls, but a quick google (RHEL 4 imap) turns up a few things. It looks like they changed the actual imap server. http://archives.neohapsis.com/archives/postfix/2006-09/0041.html RedHat has a very brief blurb on it at http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/ref-guide/ch-email.html It's a bit odd in that it also says "here's some other imap clients and servers" almost like they expect people to not use the default one that comes with RHEL. I wish I was able to be more helpful. I hope that gets you started. Troy Michael Hannon wrote: > Hello. We just upgraded one of our servers from RH 3.0.3 (IA32) to SL > 4.3 (x86_64 -- Opteron). > > We're having serious problems trying to check mail on the new system. > Local clients, such as mutt or pine, work just fine. But checking for > mail via IMAP from, say, Thunderbird or Squirrel Mail, always fails with > some variant of "Mailbox does not exist" or "Invalid mailbox name" message. > > We don't see any interesting error messages in the log files that > correspond to the IMAP failures. > > The system in question is an NIS and NFS server for client systems in a > small classroom, by the way. > > I notice that the IMAP server in SL 4.3 now runs as a separate daemon. I > believe it was started out of xinetd in RH 3. Perhaps I've simply > overlooked some configuration setting for the new daemon? > > I'd appreciate any help you can provide. Thanks. > > - Mike -- __________________________________________________ Troy Dawson [log in to unmask] (630)840-6468 Fermilab ComputingDivision/CSS CSI Group __________________________________________________