Hi @Calvin Goodman ,
- Have you checked the members of a dynamic distribution group by running the following PowerShell command? Won't show any members?
$FTE = Get-DynamicDistributionGroup -Identity "dynamic1"
Get-Recipient -RecipientPreviewFilter ($FTE.RecipientFilter)
- Try using PowerShell to create a dynamic distribution group that includes all mailbox users whose Department attribute has the value "Accounting" to see if it works. For reference: Use the Exchange Management Shell to create a dynamic distribution group.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.