Can someone tell me if I can ban a certain person from sending email to a certain domain that is on my server? Someone told me that I can only do this by banning them on the entire server. Is this true?

Example;

User@domain.com is sending emails to one of my clients but this client does not want them.

However a different client of mine does want email from User@domain.com.

How do I do this?

Kenny:angry:

Can't anyone help me with this one?:eek:

If you are using cpanel, the user can setup filters to NOT receive emails from user@domain.com

I don't use cpanel. I use qmail with qmailadmin.

maybe you can try looking at procmail mail filtering for qmail.

also, i would recommend you to take a look at http://www.mouken.com/SPAMbaffle/ for a more server-wide solution.

Thanks for the link. I currently have everything on my server open source free and would like to keep it that way.

However, the procmail looks cool. Is this a mail filtering system that will work with qmail? Or will I have to drop qmail and start using this one?

you can just use the procmail rules. Intregates with your existing system.

Qmail is perhaps the best email application. Don't think of changing it :D

For Exim

1) create /etc/myspammers
2) edit /etc/exim.conf
add "sender_reject = /etc/myspammers" line
3) put "user@domain.com" to /etc/myspammers
-------
user@domain.com
domain2.com
*.domain3.com

...
---------
4) Restart Exim