replace Qmail with Exim

[Paulo Ricardo <pauloric@contato.com.br>]

Hi guys

We have been using:
smtp..............qmail
anti-virus........clamav
scanner...........qmail-scanner
webmail...........sqwebmail
GUI...............vqadmin+qmailadmin
virtual domains...vpopmail
pop/imap..........courier-imap
list..............ezmlm
as a mail solution for ours clients who, most part of the time, need a
GUI to work.

Question:

What is the best tools to work w/ exim ?
smtp...............exim
anti-virus.........clamav
scanner............??
webmail............Horde+IMP
GUI................?????
virtual domains....
pop/imap...........courier or Cyrus ???
lists..............mailman
spam...............spamassassin or ???


Preferly a solution w/ support : WebMail+https, all softwares w/LDAP


By the way , does anyone know a how-to, or someting else to guide us ???

thks in advance