Sending, receiving, and organizing email in Outlook.com
If the deleted alias was a Microsoft-domain address such as @outlook.com, @hotmail.com, @live.com, or @msn.com, it cannot be transferred to another Microsoft account after removal. Once removed, that alias is permanently deleted and cannot be associated with any Microsoft account again.
That means the alias created on the wrong account is effectively lost for reuse on the wife's account.
If the goal is to add an alias to the wife's Microsoft account, the supported options are:
- create a new Outlook.com email address as an alias on that account, or
- add a non-Microsoft email address that is not already associated with another Microsoft account.
Microsoft also does not support merging two Microsoft accounts or moving an existing Outlook.com/Hotmail address from one Microsoft account to another.