block any user sending to specific email address

[albert_the_hairy]

First off, a site on my server is sending out about 1000 emails per hour to a single address. It's been doing it for the past couple of days. (Fortunately they're bounced back, no mailbox there, so no one is actually getting them.)

We're trying to find the problem but it's taking ages and in the meantime these mails are still going out.

As a temporary measure, is there a way I can simply block the server from sending to that address via WHM?

I have very little experience with this kind of thing so any help would be appreciated!

 

[24x7server]

Hi,

Check the below discussion link on this forum. This could be helpful for you:
Exim Filter To block Outgoing Email

 

[cPanelMichael]

Hello @albert_the_hairy,

You might find that creating a custom Exim system filter rule is suitable for this scenario. While we are unable to support the creation of custom filter rules, we document how to do so at:

How to Customize the Exim System Filter File - cPanel Knowledge Base - cPanel Documentation

Additionally, the following threads offer examples you may find useful:

Blocking all cPanel users from emailing specific domains/email accounts
Need to filter ALL email

Thank you.

 

[albert_the_hairy]

Thanks! I will check the links out carefully, (a quick glance at them looks promising).