As a student, as well as an employee at Aalborg University, you will be given an AAU ID, which gives you access to various services as well as an AAU email.
Read more in the menu under "AAU-Username".
In case you forget your password, you can find it by using your NemID to log in at newpassword.aau.dk.
Some services require multifactor authentication if you want to access them outside the campus area with VPN.
Read more about multifactor authentication here.