cyrus security

[Tom Allison]

I've managed to get cyrus to work as a running imap server, but it's 
only good in plaintext right now.

I'm a little concerned with this log message:
PAM-warn: function=[pam_sm_authenticate] service=[imap] 
terminal=[<unknown>] user=[tallison] ruser=[<unknown>] rhost=[<unknown>]

the real bummer is that my squirrelmail interface comes back with an 
error that it cannot create the Sent folder.
I'm not sure what's going on, since 'lm' already shows one there...
But I'm not sure if that's a squirrelmail or cyrus-imap issue.

What is an issue is I can't find what my options are for cyrus-imap 
authentication sanely.

help?