Re: Recommended IMAP server?

Le 26/06/2007 22:14:32-0400, Michael W. Lucas a écrit
Hi,

I find myself needing to implement IMAP on FreeBSD. Any suggestions
on the "preferred" IMAP server?

It appears that we have three "main" IMAP daemons in ports: imap-wu,
cyrus-imapd, and courier-imap. I need to pick one. My mail system
uses Sendmail+sasl2 and milter-greylist. I want to stick as close to
a "stock" FreeBSD as possible, so I'm not into reading users from LDAP
or anything like that.

It seems that imap-wu lets you synch up to /var/mail/username, but
only that.

Courier uses maildir, which means installing procmail and having a
.procmailrc for every account.

It appears that cyrus-imap23 uses its own delivery agent to build a
maildir-like structure.

Does this pretty much summarize my choices, or are there other things
I should be aware of before implementing any of these on FreeBSD?

IMHO the first question I need to answer :
Have you any IMAP-Server yet, and if it so and if this server use
mbox format, can you change this to Maildir.

If you cannot use other format instead mbox, you already have you answer.
It's uw-imap.

Many peoples tell you uw-imap is very suck. Maybe it's true, maybe the code
is not clean, but I'm running uw-imap for small groups (<1000 account) very
fine and without any problem.

If you can use Maildir, don't use UW-Imap. Because mbox is not scalable.
You can use on very large with Maildir.

Cyrus-imap is for lots of lots of account, because there using something
like Database for storage and indexing. You can have two servers
automaticaly synchronised etc... But Cyrus-Imap is more complexe than
other.

I don't known Dovecot. I've using courier-imap and work very fine. You
don't need procmail for courier-imap. You can use procmail but it's not
needed.

The perf is very good with courier-imap (vs uw-imap where the perf is very
poor when the number of mail increase).


Regards.

--
Albert SHIH
Observatoire de Paris Meudon
SIO batiment 15
Heure local/Local time:
Wed Jun 27 09:48:42 CEST 2007
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