How to block the helo name

saigonrun

Registered
Jul 3, 2019
3
0
1
Vietnam
cPanel Access Level
Root Administrator
Sender Host:113.189.230.32
Sender IP:113.189.230.32
Authentication:dovecot_plain

Hello,

Our users sending spam from a random IP all around the world, how to prevent it. I want to block all helo name with IP address, example block all helo [#.#.#.#]
In this case the sender with helo name is 113.189.230.32 will be blocked and cannot send mail out.
Is there any option to allow/not allow using pop/imap for a specific email, or restrict only use from a specific IP ?

Thank you.
 

cPanelLauren

Product Owner
Staff member
Nov 14, 2017
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1,251
313
Houston