Block inbound emails by email domain extension

Question

Hi, 
 I would like to block inbound emails by email domain extension in my SOPHOS FIREWALL, for example: 
 .ru 
 .cn 
 Now i'm blocking by the complete domain (*@domain.extension), but i would like to block by domain extension. 
 
 Thanks 
 
 Nuno Mota

Vishal_R · Answer

Hi Nuno Mota Thank you for reaching out to the Sophos community team. Currently, with SF OS email functionality, it's not possible to directly block TLD (top-level domains) on the mail processing options.

The workaround is to create a blocked hole DNAT rule to block traffic from unwanted countries as per the below guide:

Create a black hole DNAT rule:
docs.sophos.com/.../index.html

You can submit your Feature Request using the in-product feedback in the Sophos Firewall located in the Top Menu Bar.

You can also log a support case to raise a feature request which you can track it later with your sales account manager/local sales presentative or TAM.