Receive and send email to own domain only

[Fouad]

Hi,
I need to make the emails in a specific domain in Cpanel can ONLY send to the same domain and only receive from the same domain
For example, the domain of the account is xyz.com, only emails in this account can send and receive from xyz.com only, and block any domain try to send to any mail in the domain, and cannot send emails outside xyz.com as well.
how can I achieve that?
Thanks

 

[cPJustinD]

Hey there! This would require customizing the exim configuration to restrict the domain. We've published an article that provides further insight on restricting domain recipients here:

How to edit the Exim System filter to prevent user(s) from sending to specific domain(s)

 

[Fouad]

Hi,
Thank you for your reply, but this is not what I need.
I need the emails accounts I created on the specific domain, cannot send to other domain than what allowed, and cannot receive from another domain not allowed
for example
main.com has many emails
main.com can send to any email in the same domain and another domain called main2.com ONLY
and receive from the own domain and the other domain called main2.com ONLY
how can I achieve that?

Tanks

 

[cPRex]

Thanks for the additional details. How about this guide instead, which is specifically for each domain on the machine:

https://support.cpanel.net/hc/en-us/articles/1500006376621-How-to-use-Exim-filters-to-limit-a-domain-so-that-it-cannot-send-to-or-receive-from-any-external-domains-Internal-Only-Mail

If that isn't specific enough for your needs, you would need to reach out to Exim directly to see how you can configure that for each domain on the system.