Mail Relay Problem in CVP Mode

[whyme2]

After installing Interscan (version 3.52 NT) CVP with FW-1 (NG FP3), the SMTP server fail the abuse.net mail relay test and seem to be open for relay, even though it is not. How can this be fixed?

 

[ChrisAC]

If the test was able to relay a mail through the server then it's a mail server config issue.

Chris.


**********************
Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
**********************

 

[Piloria]

i would look at your mail surver first but a simple addition to the firewall is
use 2 resources for smtp. one for inbound and one for outbound.

for inbound
in the smtp resource in the "match" section set sender as * and recepient as *@yourdomain.com

for the outbound
set match to * for recepient and *@yourdomain.com

we also add another rule
on inbound blocks all incoming mail from *@yourdoamin.com
some spoofs and some viruses have a tendancy to try and send mail using domain to you (mail from your domain should never originate outside your network)