Issue with msn/outlook

April Breyman 20 Reputation points
2026-05-31T00:31:05.8766667+00:00

I have always used my msn.com email on some accounts. But recently my accounts have been disabled because msn.com is also outlook.com. If I sign in to these accounts using my msn email, I get locked out because my email is wrong. I have contacted the IT department on one of the accounts they tell me my email was changed to outlook. They don't know how change it back to msn.

Outlook
Outlook

A Microsoft application for managing email, calendars, contacts, and tasks across devices and platforms.

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Answer accepted by question author
Taz 10,126 Reputation points MVP Volunteer Moderator
2026-05-31T06:53:39.9566667+00:00

Hi April Breyman,

Your IT team is partly right: @msn.com and @outlook.com can be aliases on the same Microsoft account, but they are not automatically interchangeable on every third-party site. Those sites store one exact login ID, so if they changed it to @outlook.com, using @msn.com can fail.

Fix:

  1. Sign in to Microsoft account and verify aliases at account.microsoft.com > Your info > Manage how you sign in.
  2. Keep both aliases (if available) and set the one you want as primary.
  3. For each external account, ask support to set your login/username back to the exact @msn.com address (or use the @outlook.com one consistently if they cannot).

If they say they “can’t change it,” ask for an identity/login table update by an admin, because this is an app-side username mapping issue, not an Outlook mailbox issue.

Regards,

Taz-Mvp

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