checkpassword program for courier mail server

Have you ever wished for a checkpassword style program that would 
authenticate users against courier mail server authentication modules? 
Wish no more because here it is. Not only does it do authentication, but 
it can change passwords as well. It's called courierpasswd and you can 
get it at:

http://www.arda.homeunix.net/store/

Give it a try and let me know if you find it useful.

Andrew