All On Demand Migration for Email (ODME) mailbox migrations fail with the following error:
The remote server returned an error: (457)
This is caused by the administrator password being expired.
To resolve this issue, log in to the Office 365 portal and change your password.
In ODME/ODM, change the password to match the new password and then migrate the mailbox again.
Note: The password change process has to be a new password.
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