Office 365 Groups and Primary SMTP Addresses

So here is an interesting one.

We know Office 365 groups are a hybrid Exchange Online / SharePoint Online thing.

When you create an Office 365 Group, it creates an MSOLGroup and a UnifiedGroup object, that you can access using Windows Powershell (Get-MsolGroup / Get-UnifiedGrou).

Any email addresses that are set as Primary on the unified group, replicate up to the MSOLGroup object.

Now, you can remove them from the unified group, but they will NEVER be removed the MSOLGroup object.  Try it ;-)

This means, if you need to do say a Tenant to Tenant migration, and the default msoldomain is a vanity domain, all office 365 groups will have the vanity domain as primary and you cannot remove it!

The only fix, is to delete the group! -or- raise a call with Microsoft and have your engineer engage with the Microsoft Online Domain Services Backend team (Azure AD) to remove them for you.

Enjoy

 

 

 

Trackbacks

  1. […] Office 365 Groups and Primary SMTP Addresses […]

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: