Unable to Edit or Delete Exchange 365 Distribution List

Alan 21 Reputation points

I have a few Distribution Lists that I am unable to edit or delete on Exchange 365.

We currently have an on-premise AD synced to Azure AD.
The Sync Status for the groups are showing as Cloud.

When I click on them in Exchange I get "Unable to read the configuration" and the same if I try to delete it.

There are duplicate groups setup as Dynamic Distribution groups with the same name and email address that I can edit.
There are also the original Query-based Distribution Groups with the same names in the on-premise AD from when we previously had on premise Exchange servers.
I deleted one of the on-premise groups as a test last week but it made no difference to the Exchange 365 groups.

If I access the same group in Azure AD directly I can view it and the members but I am unable to edit or delete it from there either.
It is also specified as Source = Cloud and Type = Distribution

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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Accepted answer
  1. Vasil Michev 85,556 Reputation points MVP

    Have you tried deleting them via PowerShell? Remove-DistributionGroup or Remove-DynamicDistributionGroup, as applicable.
    You should be able to remove regular DGs with the Remove-MsolGroup cmdlet too, but this doesn't cover Dynamic DGs.

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  1. Alan 21 Reputation points

    The Remove-MsolGroup opton worked. Cheers

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