What I wanted was all of my e-mail from all accounts to be spam filtered, sorted into various incoming mail folders, and have all this, including my saved mail, be available whether I'm at my desk, using the wireless notebook, or sitting at my wife's Windoze PC. This needs to work with any MUA that supports IMAP.
Set up is:
fetchmail is pulling e-mail for multiple pop3 accounts and depositing it into my mailbox.
procmail running under a dummy user account is routing all of this e-mail through spamassassin and sorting it into several categories. The dummy user was invented so that the mail files wouldn't be scattered all over my home directory.
The IMAP server is providing access to the dummy user's mail account from all the machines on my LAN (some linux boxes and a couple of Windoze PCs) via various and sundry MUAs.
I'm sure there is a more sensible way to accomplish this, but it wasn't obvious to me when I set this mess up. Anyone care to provide any useful suggestions?
Take care, Bill