cPanel Forums

I have a problem with an @gmail.com email spammer who has obviously worked out how to identify users on my server (probably from server DNS crosschecks I assume ). They are hitting each client's contact form and emailing each account on the server with very upleasant unsolicited spam.

Obviously I can't ban at the domain level, and it's not productive to ban at cPanel level -too many accounts.

What's the best way to set up a banned email blacklist in EXIM so I can stop this person...

specific email blacklist on server