[dovecot] questions

hi, I'm look around to find a usable imap server and find dovecot. I read all the docs, but I've got a few questions: thanks.

• currently we use courier (since we find and install it quickly). can we switch from it to dovecot smoothly? or we have to convert the maildirs somehow?
• I've got a few plan in my mind it it possible to do it with dovecot now or in the near future (if yes what is the estimated time)?:
  • authenticate from LDAP, the best would be trough PAM?
  • use the same user with different domain. eg: lfarkas@bnap.hu, lfarkas@bppiac.hu with the same imap server? handle more domains.
  • use imaps and use Digest-MD5 and/or CRAM-MD5?
  • put a database backend under imap and store the mails in a database.
  • use WITHOUT local users? it's very important! most case a user never ever log into the local system and I would not like to put them into /etc/password.
  • do it all the above at the same time!?

-- Levente http://petition.eurolinux.org/ "The only thing worse than not knowing the truth is ruining the bliss of ignorance."