To see the account settings, select the account, and click on the "Properties" button.
This tab allows you to name your connection in the top text box. It allows you to set your E-mail address and allows you to set a reply address different than your send address.
This tab is where the server for outgoing and incomming mail are set. The incomming mail server uses POP3 mail protocol and outgoing mail uses the SMTP protocol.