Click on Tools / Accounts...

Click on Add / Mail...

Display name:
Type in the name you want to appear when people recieve your e-mail.

Click the Next button.

E-mail address:
Type in your e-mail address.

Click the Next button.

My incoming mail server is a POP3 server

Incoming mail (POP3, IMAP or HTTP) server:
Type in mail.glis.net or mail.c3net.net

Outgoing mail (SMTP) server:
Type in mail.glis.net or mail.c3net.net

Click the Next button.

Account name:
Your username should already be in there.

Password:
Type in youe password.

Remember! Username and password are case-sensitive.

Click the Next button.

Click the Finish button.
Click the Close button at the Internet Accounts window.