How to sign in to or out of Outlook.com - Microsoft Support
If you can't sign in to your Outlook.com, Hotmail, Live, or MSN email account, or you're not sure how to sign in or sign out, here are some solutions.
Applies To:
Outlook.com
Use a link or code to join a team in Microsoft Teams
Select Join team. Under Join a team with a code, type or paste the code in the Enter join code box and then select Join Team. Notes: If you're a team owner, you can get a link or a code to send to someone. Currently, guests can't join a team by using a code.
Applies To:
Microsoft Teams