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IOS 12.4 nmap scan port 110 (pop3) open

Andrew von Nagy
Level 1
Level 1

When I nmap scan my Cisco 871 router running IOS 12.4(9)T it shows that port 110 (pop3) is open. I am unable to find what process is configured causing this port to be open. I am not running webVPN as a POP3 proxy.

Does anyone know what this may be and how to close it?