Author: John Hall Date: To: exim-users Subject: Re: [exim] Is the Exchange 2007 Edge Transport Server required?
On Tue, Sep 23, 2008 at 17:00, Conrad Lawes <pxeboot@???> wrote:
> My employer is planning on migrating from Sendmail (Linux) to Exchange
> 2007. We also have an SMTP gateway server running the Exim 4 (Linux). This
> gateway server also does spam filtering (Spamassassin) and virus blocking
> (Clam-AV) and does it quite well.
>
> As I understand it, the primary role of the Exchange 2007 edge transport
> server is for spam and virus filtering and smtp gatewaying. Since these
> roles are already being performed by the Exim server, do we really need a
> separate edge transport server?
I run exim as the frontline server and then Exchange with just Mailbox
and Client Access roles. IMO, exim has far more flexibility as an edge
transport server than Exchange.
You can also integrate exim nicely with Exchange by peforming Active
Directory LDAP lookups to do recipient verification.
