How to Permanently Unblock an IP address?

[tanmalik786]

Hi there,
I have been struggling with finding out a reason, as to why on certain terminals on my office LAN which are using a Public Static IP address - I am unable to receive email from my Email server hosted on

OS
CentOS v7.9.2009 STANDARD vmware
cPanel Version
106.0.9

I even tried to add it to the csf.allow, file so to skip its check and avoid blocking it BUT I haven't succeeded.

Can anybody help me in this?
TIA

[Sergio]

You should add the IP on 2 files:
csf.allow and csf.ignore

Sergio