Trying to configure server firewall

Hello, I am new to configuring my firewall, I was told by someone who configured it for me to restart the firewall by using the command apf -r. I used to receive email responses from dropped IPs, but I no longer do so, so I am assuming that either my firewall isnt blocking suspicious activity anymore, or the email is not being sent. How can I configure it to email me again, or how can I check to see if its working? Thanks Trying to configure server firewall

 

 

 

 

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