In the “Server settings” menu the service provider’s information, where the mailbox is located and from which the emails are synchronized, can be set. This includes the server, server type, connection security, port, username and password. By purchasing the email addon, you won’t receive a separate mailbox but an easy and integrated UI.
The three most used email server provider’s (Gmail, Yahoo, Freemail) settings are already saved. So, you only must fill in the username and password, if you are using any of these.
If you use another mail server, please ask your service provider for the exact setting.