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Adding a MailContact to a DistributionGroup

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I thought this was simple, but I cant figure out how to accomplish it in the UI or Powershell.  When attempting in Powershell, I get the following:




PS C:\Users\tybala> Add-DistributionGroupMember -Identity "Board" -Member ""
Couldn't find object "". Please make sure that it was spelled correctly or specify a
different object.
    + CategoryInfo          : NotSpecified: (0:Int32) [Add-DistributionGroupMember], ManagementObjectNotFoun
    + FullyQualifiedErrorId : A9657AC1,Microsoft.Exchange.Management.RecipientTasks.AddDistributionGroupMemb
    + PSComputerName        :





Well, the MailContact exists.. maybe it should be enabled?  It seems that Enable-MailContact does not exist when  I try to run it. 


Please let me know what I need to do in order to get this working.

All Replies
  • Are you on the P or E plan? There are limitations to the number of contacts that you can add on the P plan (I want to say 25, but I cant remember)

    Anyway, after you setup the external contact, just add them to the DL in the membership section... See the screen shot.

  • You can also try to add by the alias you assigned to them, rather than the email address

  • Hello TyB,

    Before adding an external user to a distribution group of Office 365, make sure you have added it as an external contact, as Kelsey mentioned above.
    For your reference:
    Create a New External Contact

    Then, you can choose either one the ways to add the external user to a specific distribution group:
    •In the Exchange Control Panel, just as Kelsey suggested:
    1) Select Manage My Organization > Users & Groups > Distribution Groups.
    2) Click the specific distribution group >Membership >Add > click the external user to add it.
    •Run Windows PowerShell, just as you have mentioned:
    Add-DistributionGroupMember -Identity "Staff" -Member ""

    Additional reference:
    Distribution group limits

    Cherry Wang

  • Hi TyB,

    I'm writing to follow up on the previous thread. How are things going?

    Cherry Wang