Add an Azure AD guest user to a EXO distribution group

Someone ask if you can add an Azure AD guest user to a distribution list. But in Exchange online you cannot find that guest user.


By default external Azure AD guest accounts are hidden from Global Address List. If you want to enable this, you can run the following command, in the AzureAD module.

Set-AzureADUser -ObjectId OF-THE-GUEST-ACCOUNT -ShowInAddressList $true

If the need is that the guest only needs to be added to a distribution list. Connect to the Exchange module and run the following command.

Add-DistributionGroupMember -identity dl@domain.com -Member Azure.AD.GuestUser@domain.com

The Azure AD guest user will be a guest mail user in EXO, but still hidden from the GAL.

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