Block "Mail delivery failed: returning message to sender" from happening!

[Jangan]

Dear cpanel,

I'm trying to do some spoof testing on my domain.

The email does not get received BUT i keep getting a failed email as follows.

---------------------

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:

[email protected]

(ultimately generated from [email protected])

Unrouteable address

---------------------

Please help me! how can i just stop this from happening entirely? I don't want this email to be generated or to send back to my spoof service.

 

[cPanelWilliam]

Hello!

Could you please provide the full lines for this email from the exim_mainlog file? For example, you could grep for the email ID and get every line related to the specific email transaction that failed:

exigrep $emailid /var/log/exim_mainlog

The following article may help with this:

Reading and Understanding the Exim_mainlog

 

[keat63]

In Cpanel under the email section, choose 'default address'
Go to 'advanced'
In there you can choose 'discard (not recommended)'
All undeliverable emails without a response, will get dropped.

In effect, if someone were to email [email protected], the email would just get dropped and nothing more would happen.