Restrict outgoing email to certain domains

Hi, I'm trying to restrict emails from my account (mydomain.com) and only allow users email addresses at mydomain.com and myotherdomain.com, with the exception of users john and david ..

I've tried the code below with no luck, all emails fail !?

I'm new to this and this is my first attempt so I apologise if I'm way off !

Any help would be appreciated, thanks.

Code:

if first_delivery
   and ("$h_from:" contains "@mydomain.com")
   and ("$h_from:" does not contain "john@mydomain.com" or "$h_from:" does not contain "david@mydomain.com")
   and ("$h_to:, $h_cc:" does not contain "@mydomain.com" or "$h_to:, $h_cc:" does not contain "@myotherdomain.com")
then
   fail "Cannot send to this recipient."
endif

 

Hi, thanks for the reply.

I'm trying to restrict outgoing email to be limited to sending to certain domains.

I put the filter file above in /etc/cpanel_exim_customfilter and then pointed the 'system filter file' setting at this within the Exim Configuration Manager on WHM.

Is there an easier way to achieve this ?

Thanks again.

 

Yes I'm using a custom system filter file with my rules and have that file specified in the "System Filter File" option.

Thanks, I'll have a look at those threads.