Open Outlook for Mac.
Select Outlook > Settings > Accounts.
If your account uses Microsoft 365 or Exchange with modern authentication, select Manage to remove and re-add the account. Sign in again when prompted after changing your password.
Verify that Outlook can send and receive email.
Update your password in Outlook for Mac
Applies To
Outlook for Microsoft 365 for Mac Outlook 2024 for Mac Outlook 2021 for Mac