Replace MS Exchange

["Joyce, Matthew" <MJoyce@ccia.org.au>]

Hi,

Has anyone done any research into completely replacing an existing MS
Exchange email setup ?
I have Exchange 5.5 with PC and Mac clients, they use a mixture of Eudora or
Outlook.

We are about to expand some, and I will have to replace the current server
wityha bigger one, and buy a heap of lecenses for the new clients.

I just wondered if it was feasably to make the move over to a linux based
email server.

Cirtainly the majority of the mac clients only use pop3 or imap features of
the server, but there are a good few who use the calendaring and public
folders.

I would like to offer webmail, which seems easier with linux.
I have use SquirrrelMail as a webmail to Exchange via IMAP before (test) but
it create some odd folders in the mail box and the MS mail objects such as
meeting requests and notes and stuff were not understood.

Any ideas ?

Matt