[ale] Cyrus -vs- Washington IMAP (and any others)

[Nathan J. Underwood]

I'm in the process of replacing an NT4 / Exchange network with a *nix 
(Linux, Samba, <mail server>) backend, and I'm to the mail stuff now. 
It's going to be a Fedora setup, and I would really prefer to stick with 
RPM packages rather than source so that updates can be handled (as much 
as possible) via apt or yum.  I've used sendmail and qmail in the past, 
and would prefer to use qmail (don't get me started on sendmail), but 
I've not been able to find a qmail rpm.  Postfix looks like the next 
best thing, so I've been tinkering with it (2 config files so far, I 
love that) as an MTA.  Since they'll be moving from an Exchange world, 
and they're used to never having to delete anything (again, don't get me 
started) and being able to get access to the same 'picture' of their 
mail from multiple locations (office, home, webmail), I believe IMAP 
would be a better option than POP3.  They will have 3 servers when it's 
all said and done, one will be the primary file server and acting PDC 
(Samba 3 + LDAP), the other two will function as primary / secondary DNS 
and DHCP servers, and the secondary will also function as a BDC 
(slurpd).  In looking at available IMAP servers, it looks like 
Washington and Cyrus are the two main players.  The big advantage of 
Cyrus over Washington appears to be that there isn't a need for a local 
account, which isn't really a big deal since all mail users will have 
local accounts.  Any thoughts?  Should I consider Washington, or drive 
on with Cyrus?  Any other input / suggestions would also be appreciated. 
 I'm looking at using a SpamAssassin / ClamAV combo for av and anti-spam.

tia
nathan
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registered linux user # 73046