MX Records and Spam Filtering
Posted on 2006-05-07
I run a mail server that doesn't adequately eliminate viruses and spam. This is on a W2K server. I also have a Cobalt Server that runs MailScanner. If domain.com is set up on the W2K server but I point the MX records to a virtual site I have setup on the Cobalt, how do I then tell the Cobalt to send the mail back to the W2K server once scanned.
I have setup DNS at the moment to:
mail.domain.com - IP of W2K
MX - Spamfilter.virtualsite.com (On Cobalt)
If I send an email, it correctly goes to the Cobalt but I get:
SYSERR(root) MX list for domain.com points back to (hostname of cobalt)
I have added the domain to the allowed domains for relaying on the Cobalt.