The port number to use for connecting to the mail box server. If this field is left blank, then the default port number for POP-3 servers is 110 when the Connection Type is set to Normal and 995 when set to SSL. For IMAP servers the default port number of 143 when the Connection Type is set to Normal and 993 when set to SSL.
Connection Type
The connection type to use when communicating with the server.
Normal - The connection is not encrypted.
SSL - The entire connection and transmission is encrypted using SSL.
Timeout
The number of seconds to wait when attempting to connect to the mail box server. A timeout error will occur if the connection cannot be established in the specified amount of time. If this field is left blank, the default timeout value of 300 seconds will be used.