Office365: Resetting your admin users primary email address

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I’ve just been migrating the itsmonkie domain to my Office365 for emails only. It was a fairly straight forward affair really, with pretty clear instructions given on the Office365 site.

I did however, find one little annoyance – as I’m currently the only user of our office 365 account, and therefore am the only global admin user I had a bit of trouble sorting out my primary email address. To cut a long story short, I had already got matthew.whetton@itsmonkiesolutions.onmicrosoft.com¬†registered as my primary email address. It was not problem adding my actual itsmonkie address (matthew.whetton@itsmonkie.co.uk), but as it wasn’t my default address, emails were sent from the ‘onmicrosoft.com’ address instead. The problem hits when you attempt to change your own primary email address – in as much as you can’t log on and change your own primary email address!

A lot of the advice out there is to create a second admin account, and change it from there (its obviously a good idea to have a backup admin account). But as a small business, I cant be paying for a second account each month for no good reason. I also didnt like the idea of deleting the account that I created everything with Рyou know that is going to cause problems somewhere down the line!

The Solution

So I found the solution to my problem on Mark Wilson’s blog: http://www.markwilson.co.uk/blog/2011/05/changing-the-primary-email-address-for-office-365-users.htm

The post basically outlines exactly how to use PowerShell to get the job done – its written really well, and for me at least – solved the problem perfectly. The post details how to establish a session, get the mailbox, enumerate your email addresses and ultimately set your primary address. Really great post – thanks Mark!!!

Matt

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