How do you configure iMS 5.1 to only allow use secure AUTH mechanisms, CRAM-MD5 and DIGEST-MD5?

I want to use SMTP AUTH only with secure authentication mechanisms. LOGIN and PLAIN authentication aren’t secures. Do you know how to configure iMS 5.1 to only allow use secure AUTH mechanisms, CRAM-MD5 and DIGEST-MD5? Now all four are allowed:

250-AUTH CRAM-MD5 DIGEST-MD5 LOGIN PLAIN

MD5 mechanisms provides password security and client authentication. It does not encrypt the data stream, I can work with SMTP over TLS, but I only want password security for a best performance.

[512 byte] By [708687] at [2007-11-25 7:08:03]
# 1
I don't believe that is possible. However if it were it's be accomplished by a parameter in the channel option file. But, I don't see a parameter listed in the documentation that applies to it.It would make a good feature though in my opinion.-Chris
709463 at 2007-6-29 17:38:39 > top of Java-index,E-Mail, Calendar, & Collaboration,Sun Java System Messaging Server...