You can change your password at Altibox Selvbetjening (in Norwegian).
If you are not an Altibox customer, please contact our customer service centre.
Select the e-mail or e-mails you want to delete, and press the Delete button in the toolbar.
If you want delete an e-mail account or e-mail address, you do this at Altibox My pages.
If your folders are hidden in webmail you must click the small pluss symbol to the left of the envelope in the left column. Good luck!