Knowledge base · practical guide
Microsoft 365 or email not working? Check these things first
Email problems may involve a password, account verification, synchronisation or settings. First find out whether the issue affects one device or the account everywhere.
Narrow down the issue
- Does email fail on one device or on both your laptop and phone?
- Can you sign in through your provider’s webmail?
- Was the password or account recently changed?
Common causes
- An outdated password or sign-in session.
- A sync problem between Outlook, a phone and webmail.
- An account that needs verification, or incorrect mail settings.
Safe checks
- Try the official webmail page by typing its address yourself.
- Check whether the same error appears on another device.
- Never share a sign-in or verification code. If the problem persists, have the account settings checked.