Using New Outlook on Windows for personal email, calendar, and contact management
Hi, @Russ Biretta
This can happen if Outlook needs to re-authenticate the account, for example after an update, password change, or sign-in/security change.
First, try signing in to that email account directly through its webmail using the same password. If that works, restart New Outlook and try again.
To help narrow this down:
- Is the affected account Outlook/Hotmail, Gmail, Yahoo, or another email provider?
- What exactly does the password prompt say?
- Can you still sign in to that account successfully through a web browser?
Click "Add comment" to let me know.
Thanks!