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?