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Chris Krueger
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Cannot remove email alias for account in Office 365

I am trying to add/remove aliases to an account in Microsoft 365 and get this error:

The operation on mailbox "Blane Smith" failed because it's out of the current user's write scope. The action 'Set-Mailbox', 'EmailAddresses', can't be performed on the object 'Blane Smith' because the object is being synchronized from your on-premises organization. This action should be performed on the object in your on-premises organization.
Microsoft 365

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Saif Shaikh

8/22/2022 - Mon
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Saif Shaikh

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Saif Shaikh

If you have an exchange server in the onpremise local AD then you can do it from Exchange management console for exchange 2010 server or you can use EAC for exchange 2013 server.

If you don't have any exchange servers in your local AD then probably you need to do it manually from local AD as described above.
I started with Experts Exchange in 2004 and it's been a mainstay of my professional computing life since. It helped me launch a career as a programmer / Oracle data analyst
William Peck