Sending, receiving, and organizing email in Outlook.com
Hello,
What is the exact error message you receive when you sign in with your Microsoft Account here?
Open a Private browsing tab on your mobile web browser and go to https://outlook.live.com/
Has your username (email address), or password, or security information been changed by a hacker?
Have you tried resetting your Microsoft Account Password?
https://account.live.com/ResetPassword.aspx
If you successfully reset your password and can sign in to Outlook but are no longer receiving new emails,
- check your forwarding settings by going to Outlook Settings > Mail > Forwarding & IMAP.
- Then review your inbox rules under Outlook Settings > Mail > Rules.
If your incoming emails are being forwarded to an unfamiliar address, select “Stop forwarding” or turn off forwarding, then save your changes.
Also, remove any rules you do not recognize and review your blocked senders list for addresses that should not be blocked.
Let me know if you still need more help.