First you’ll need to find the system filter file for Exim. This can be found out through WHM >> Main >> Service Configuration >> Exim Configuration Editor.
Towards the middle of the page, under the section ‘Filters’ , you ‘ll find the path to the file.
Open that file via SSH using your favorite editor and add the following to it :
if first_delivery
and ( (”$h_from:” contains “emailtoblock@domainname.com”)
)
then fail
endif
If you would like a copy of the email to be sent to you after the message fails, use the following code :
if first_delivery
and ( (”$h_from:” contains “emailtoblock@domainname.com”)
)
then
unseen deliver “youremail@yourdomainname.com”
fail
endif
Make sure that you substitute the correct email addresses in the above code.
