How to setup SMTP authentication without SSL encryption

I'm using iplanet mail server 5.2. how can I setup authentication on SMTP without SSL encryption.
[112 byte] By [706904] at [2007-11-25 8:10:23]
# 1

I forget the defaults for 5.2. Out of the box it should work, I think. The clients can use TLS/SSL if they wish and you've installed CERTs, etc., but should not be required.

Again I do not have a copy of a default iMS 5.2 imta.cnf file in front of me. Look for keywords starting with 'musttls'.

From a security point of view this is a bad idea...

-Chad-

707213 at 2007-7-1 14:03:53 > top of Java-index,E-Mail, Calendar, & Collaboration,Sun Java System Messaging Server...