User banned instantly after Config Server Firewall enabled

[postcd]

Hello, i install Config Server Firewall for my friend, i can login server, SSH etc, but he is denied. SSH, even website after disabling testing mode of CSF.

Any idea why?
i checked /etc/hosts.deny and allow. Deny dont contains his IP and allow is empty...

 

[Infopro]

Is CSF set to send emails? You might look into why he's getting blocked by the logs. CSF emails is a good place to start.

 

[postcd]

Is CSF set to send emails? You might look into why he's getting blocked by the logs. CSF emails is a good place to start.

Thanks for idea,
i did not set reporting email in CSF so i did:
# mail
No mail for root