Re: [Exim] Mail Filter/Relay Question

Adam H. Pendleton wrote:

> The company I work for uses M$ Exchange as their primary mail system.
> Currently they receive large amounts of spam, and they have no spam
> filter in place. Rather than purchase a decent spam filtering system
> for Exchange, I suggested that we use an Exim box, armed with
> SpamAssassin and RBL's to filter the mail before passing it on to the
> Exchange server. My questions are:
>
> 1) I assume this is possible?

Sure.

> 2) Is this the best/efficient/*cheapest* solution?

There's more than one way to do it ;)

> 3) How exactly would I go about configuring my DNS and Exim to do this?

-Point the MX-record to the exim machine
-use a manualrouter to forward the local domains to your exchange-server
-Use LDAP-lookups to validate users against exchange

Nico