SOLVED Block emails to unknown recipient

[a.rayman]

Hello,

After checking Mail Delivery Reports, I can see that emails are being successfully received to email accounts that don't exist - they are marked as spam, but I would like to see them rejected.

Is this possible?

 

[cPanelMichael]

Hello,

Yes, you can change the "Default Address" option for the associated cPanel accounts to "Discard the email while your server processes it by SMTP time with an error message":

Default Address - Documentation - cPanel Documentation

This will ensure delivery attempts to non-existent email accounts are rejected.

Thank you.

 

[a.rayman]

Thank you for the help.

Incase anyone is looking to have it Reject by default for all cPanel accounts: WHM >> Tweak Settings >> Select "Fail" for "Initial default/catch-all forwarder destination"