SPAM Bypassing MX Record

[cryptid]

Hi All,

I'm running into an issue on one of our servers that we have DA installed on. Basically we have a domain set up in Spamstick to block all incoming SPAM, but the problem is the SPAM is being sent directly to the server instead of using the MX records which would normally point them to Spamstick.

At first I thought that we could just configure a rule in the firewall regarding port 25, but then I realized that this would affect all users on this server considering not all are set up in Spamstick.

I was taking a look around in /etc/virtual and saw a few files that I may could alter to alleviate this issue, but wanted to get some input from a few of you first. Has anyone else ran into an issue similar to this, and how did you handle it?

 

[scsi]

If you have an open port there is nothing you can do. Connections will be made to it.

 

[nobaloney]

I was taking a look around in /etc/virtual and saw a few files that I may could alter to alleviate this issue, but wanted to get some input from a few of you first. Has anyone else ran into an issue similar to this, and how did you handle it?

Sure you can use those files, but unless you tell us which files and how you intend to use them it's hard to say what will or won't be successful for you.

You can also do very complex firewall rules but that's way beyond the scope of the DirectAdmin forum.

Something which might be helpful would be to advertise different A records for domains who don't subscribe to Spamstick, but that might not work either, as once A records are in spammer lists they often stay here so spammers won't waste resources looking up DNS.

Jeff