Exchange Online: Change Primary SMTP Address without changing Sign-In address

By default, when you mail-enable a user, that user will be given an e-mail address that matches the user’s online services id. You can always add other e-mail addresses, using Exchange Control Panel:


As you can see, it is not possible to change the primary e-mail address using this Exchange Control Panel, when you change the user its online services id, the primary e-mail address will match the new online services id… so:


Is it possible to change the primary e-mail address of a user without changing it’s online services id?


Yes, by looking here:

You can see that by using the Exchange Shell, it’s fairly easy to change the primary e-mail address without changing the Microsoft online services id.

But….isn’t there an easier way?

And, yes there is…using the Exchange Management Console

You can install the Exchange Management tools on a Windows 7, as described here: Install the Exchange 2010 Management Tools


After installing the required windows components, I am ready to Retry:




When launching the Exchange Management Console, I get an error that he is unable to connect to an On Premises Exchange environment, but I can right-click and select Add Exchange Forest:


And chose to select to Exchange Online:


And there I can see the mailboxes in my Online environment:


When going to the properties of my mailbox, I can select the tab E-Mail Addresses,


click on, and click Set as Reply:


Time to test:


Primary E-Mail address has changed, and the Online Services id hasn’t Smile


Comments (6)

  1. Excellent article, will be very useful to the community, congratulations

  2. Thomas Valley says:

    I'd be interested in using the Exchange Management Console, but as an Office365 subscriber only, I don't have an installation CD from which to pull the Management Console.  Is it available elsewhere?  I can't seem to find a straight answer.

  3. Kipp Hollingsworth says:

    I second Thomas's comment as I'm in the same situation. On Office 365 without a CD to install the Management Console with, can it be downloaded somewhere?

  4. Corey Webb says:

    You can download the complete Exchange DVD here:…/details.aspx.  You have to go through the entire install process, selecting only "Management Tools" during the custom install.

  5. Brian Burleigh says:

    You can always download Remote Server Access Tools (RSAT), which is a great idea for your Windows 7 station anyway.

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