I think your best bet is to crank up the logging using the LOGLEVEL environment variable and watch the logs during a pop3 session.
To generate password hashes using OpenLDAP:
[neil@dev neil]$ /usr/sbin/slappasswd
New password:
Re-enter new password:
{SSHA}6VbODXPZcobB9P/UQsBT7PTzSolOld3S
[neil@dev neil]$ /usr/sbin/slappasswd -h {CRYPT}
New password:
Re-enter new password:
{CRYPT}YUXZvSkrOByNM
You're better off reading the man page for slappasswd though.
-neil
