Geting multiple spam email failures

connos

Registered
Nov 29, 2014
1
0
51
cPanel Access Level
Root Administrator
hi there colleagues,

I have a tiny problem which not allow me to sleep well at nights.
On WHM -> Mail Delivery Reports
I am getting time to time many failures of delivery emails, because the spammer try to delivery on nonexistent mailbox. Please take a look on photo
Same Sender different non-existent mailboxes...
How I can prevent that or how I minimize to 2-3 failures?manyFailures.jpg
 

cPanelLauren

Product Owner II
Staff member
Nov 14, 2017
13,274
1,285
313
Houston
The issue being shown here is that the sender verification is failing, either your user is sending to a bunch of non-existent users or your sender verification is not able to complete. If you believe this email is not legitimate I'd suggest first changing the password of the email account affected then check if the issue persists.