Routing to blackhole in cpanel not working

koda

Well-Known Member
Jan 10, 2014
63
2
58
cPanel Access Level
Root Administrator
I'm trying to temporarly overcome a backscatter attack, in the meanwhile I tried to set on this domain the default address in CPanel 76.0.20 to Discard (Not Recommended).
But I made a simple test, writing an email to a non existent address and I receive back a failure notice for 550 5.1.1 [email protected] User doesn't exist.
Shouldn't it work so that I receive no delivery report?

Thanks
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,884
2,254
463
Hello @koda,

Can you share the output from /var/log/exim_mainlog when reproducing the issue? Here's a command you can use to obtain this information:

Code:
exigrep MSGSUBJECT /var/log/exim_mainlog
Replace MSGSUBJECT with the subject of the test email you send (use something unique when testing). Ensure to replace real domain names and IP addresses with examples when pasting the output here.

Thank you.