Click on Add account... under menu entry Mail.
Click on Add Other Mail Account... and then Continue.
Enter your name, the email address that you created in the control panel and the password and click Continue.
Fill in the settings below:
- Email adress is remembered from the previous page
- Username is your entire mail adress
- Password is remembered from the previous page
- Account Type should be set to IMAP
- Incoming Mail Server: mail.your-domain.dk
- Outgoing Mail Server: mail.your-domain.dk
Click Log in to continue
Finally click OK so the account can be used in Mail.