POP3 Server

How do I use "Why Can't I Connect?"

I will attempt a connection to a POP3 Server. Enter the server name or IP address. Choose between STARTTLS or SSL/TLS. Select a port. The default port for POP3 STARTTLS is 110. The default port for POP3 SSL/TLS is 995. I expect a response from POP3 STARTTLS so I will wait for the response and close the connection on success. I do not expect a response from POP3 SSL/TLS so I will close the connection on success.