Email - Denying email sent to a certain address
I have a dedicated Linux server. I am allowing a small site owner to have their site on my server at no cost. It generates just a handful of visits each day so it's no big deal.
The problem is email. They are forwarding one of their email addresses (not associated with my server) to the email address that is on my server. (This email address gets a lot of spam and I'm having to sort through it in my trash mailbox.) I have asked them to stop, but I haven't gotten any response yet. Short of throwing them off the server, how can I deny email messages from going through my server when the TO: address is not on my server?
Can I use procmail? What do I do?
Thanks!
