Restrict incoming smtp

[holymanjay]

Hi,

I have a cpanel box setup, and have a mail gateway to scan all emails before it reaches the cpanel box. My question is, do anyone know how to configure the cpanel box to only accept email from my email gateway, so emails from any other hosts will be rejected?

Thanks in advance.
Steve

[chirpy]

You should be able to do it easily enough using an ACL and having your gateway as an exception. The www.exim.org site is a minefield of good information for such things.