questions we really should answer.  if you feel like doing us a favor,
sit down and answer one.
-  what's the difference between "authentication" and
"authorization"?
-  why is it so hard to get imapd working with redhat's
shadow password implementation?
-  When does imapd advertise PLAIN?  when does it accept
plaintext logins?
-  What are the advantages of LMTP?  
-  How do I configure Sendmail to use LMTP?
-  How do I configure Postfix to work with Cyrus?  To use LMTP?
-  How can I run LMTP over TCP?  Why should I want to?
-  What are the performance implications of single-instance store?
(in effect as of 1.6.22)  How should I configure partitions to deal
with a large number of users?