There are a few choices:

1) Bynari Insight Server and client
2) the Oracle Collaboration Server and client
3) Using the open-source sendmail,Cyrus IMAP, and OpenLDAP plus the Oracle
Collaboration Server client piece to fool Outlook into thinking it's talking
to Exchange.
4) Using the open-source sendmail, Cyrus IMAP server, and OpenLDAP plus the
Bynari client connector to fool Outlook into thinking it's talking to
Exchange
5) Ximian's Evolution client and the above back ends.

You don't say whether you have to preserve the desktop client -- ie, do they
insist on using Outlook? If no, then seriously look at Evolution.

If you have to keep Outlook, then the other solutions have pros and cons.
I've been very impressed with the client piece for the Oracle Collaboration
Server (nee Steltor's Corporate Time client). It's very smooth and does a
pretty good job of supporting most Outlook functions, and is fairly simple
to push out to the desktop systems.  There are some awkward bumps in
deploying Bynari's client piece, but by and large it worked for simple
Outlook functions.

Wrt to the server back ends, the Oracle solution is fairly expensive due to
the database requirement, but scales well. I find the combination of the
open source back ends works well with either client, and keeps the cost more
reasonable.

You should plan on installing the server back end first, then pushing out
the client piece, and then using the client to copy the messages from
Exchange folders to folders on the new mail server as the simplest approach.
Extracting the messages directly from the Exchange store is almost
impossible (this also provides an incentive for people to clean out their
mailboxes).

-- db

----- Original Message -----
From: "Nilson Vieira" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, October 08, 2002 3:59 PM
Subject: Ms-exchange clone


> Hi all
>
>
> I,m looking for a MS-EXCHANGE like application
> that works on Linux suse 390.
>
> Can some one help-me with a roadmap to migrate from MS-EXCHANGE (including
messages files) to a open-source application.
>
> Thanks in advance.
>

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