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Add existing external contacts to distribution list with PowerShell

Posted on 2014-01-02
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Last Modified: 2014-01-05
hey guys,

I have an Exchange 2010 server that I have imported some external contacts into an OU in AD using PowerShell and now I want to add all contacts in that OU to a distribution list.

I cant seem to add external mail contacts to the distribution list using PowerShell, only domain users. I can do it using the AD management console but I want to script this process hence why I am trying to do it with PowerShell.

Because of the problems I have encountered, to simplify things I am trying to add just one contact to the DL before trying to add the whole OU again. I have tried using the Name, DistinguishedName, Identity and even WindowsEmailAddress after the -member switch but nothing works.

Here is the single command I have been issuing and here is the output.
Add-DistributionGroupMember "All Suppliers" -member "CN=Supplier,OU=All Suppliers,OU=Domain Users,DC=domain,DC=local"
Couldn't find object "domain.local/Domain Users/All Suppliers/Supplier". Please make sure that it was spelled correctly or 
specify a different object.
    + CategoryInfo          : NotSpecified: (0:Int32) [Add-DistributionGroupMember], ManagementObjectNotFoundException
    + FullyQualifiedErrorId : F5A15BE2,Microsoft.Exchange.Management.RecipientTasks.AddDistributionGroupMember
    + PSComputerName        : mail.domain.local

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Is there a different command that I cant find any documentation on to add contacts to a DL from PowerShell? I haven't been able to find one in all my googling.

Thanks in advance.
AC
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Question by:defecta
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Jeremy Weisinger earned 450 total points
ID: 39753157
You need to mail enable the contacts if you want to use the Exchange cmdlet.

http://technet.microsoft.com/en-us/library/bb124237.aspx

Once the contact is mail enabled you should be able to add it using that command.

The equivalent of what you're doing in AD is the Add-ADGroupMember cmdlet.
http://technet.microsoft.com/en-us/library/ee617210.aspx
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Expert Comment

by:dsnegi_25dec
ID: 39753309
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Author Comment

by:defecta
ID: 39753534
Dsnegi_25dec I have seen that thread which I was using as the basis of my script. With the exception of importing contacts from a CSV first I have been following the same steps and it doesn't work. Perhaps for the reasons Jeremy was alluding to.

Jeremy, I am yet to do as you have suggested but before I do, can you explain why I can add the same contacts to the distribution list without mail enabling them using the GUI but not via the shell?
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by:Jamie McKillop
Jamie McKillop earned 50 total points
ID: 39754718
Hello,

The reason you can add them in the GUI is that you are using a completely different tool. ADUC doesn't care that they aren't mail enabled. From its perspective, you are just adding a user to a group. The Exchange tools will only allow you to add mail-enabled objects to distribution groups.

-JJ
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Expert Comment

by:Jeremy Weisinger
ID: 39755608
Thanks JJ, exactly what I was going to say.

Defecta, for Exchange to utilize the contacts and send to them, they need to be mail enabled. So what you did in ADUC won't have any affect unless those objects are already mail enabled.
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Author Closing Comment

by:defecta
ID: 39758411
Thanks guys, i never did test sending email to the contacts until after I questioned what you said. Of course you were right.
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