Spam filter for mail coming via second MX record (mail relay server)
Posted on 2006-05-29
First MX record points to a spam filtering server and mail then forwards on to the Exchanger Server 2000.
Second MX record points to the ISP mail relay server but this has no spam filtering.
Wild card email has been implemented (points to one user account) with some kind of script rule - it does seem to work, but obviously makes the spam issue much bigger.
Firstly is there an affordable spam filter available for Exchange server? (anti-virus system is NOD32)
Secondly, if wildcard email was rejected if it comes from the mail relay this would kill most of that spam .. how to implement this?
I am fed up with Exchange server and am ready to suggest the customer implements mDaemon which has unlimited storage and spam filtering included. Any thoughts on this?