Found the answer to my own question, posting here in case anyone else wants to try it. Install stunnel from
http://zaurus.logix.cz/tips.xp/stunnel Then, following the czech instructions on their site , add the two lines listed to /etc/inetd.conf, then restart with killall -HUP inetd. Finally, in the email client, choose IMAP or POP3, then put localhost as the server. The port number can remain as the default (143 for IMAP).
Now that\'s settled, it doesn\'t work nearly as well as I\'d like. As others have posted, the IMAP client is seriously brain-dead; downloading all your messages from every folder, including trash, into your inbox. Takes quite a while with a few hundred or few thousand messages. So your alternatives are to use POP3 and leave messages on server if your server supports both, or deal with the slow/buggy email client. Personally I\'ll stick with SSH/Pine, or maybe try Pine for the zaurus....