Why are my Exchange Distribution Group Properties Greyed Out in EMC?

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Why are my Exchange Distribution Group Properties Greyed Out in EMC?

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Added by March 2, 2012

If you’ve upgraded from Exchange 2003 to Exchange 2010, you may come across an issue where distribution groups in the Exchange Management Console (EMC) are unmanageable. In other words, your groups might be “greyed out”, and you won’t be able to add or remove users, or change any of the groups properties.

Here’s what’s going on. First, the distribution group was probably created as a global group in Active Directory. You can right click each group (or multi-select) in EMC and select ‘Conver to Universal Group’ to fix this. You could also do this from the Exchange Management Shell (EMS) using a one-liner:

Get-DistributionGroup -ResultSize Unlimited -RecipientTypeDetails MailNonUniversalGroup | Set-Group -Universal

After you’ve done this, you’ll be able to manage the membership of these groups. However, other features – like group moderation – will also be ‘greyed out’. This is because the groups object version needs to be upgraded. To do this in bulk for all groups, use the following EMS one-liner:

Get-DistributionGroup –ResultSize Unlimited | Set-DistributionGroup –ForceUpgrade

It’s as simple as that. Keep in mind that if you will be in coexistence for a period of time, where you have both Exchange 2003 and 2010, this should only be done for groups that will be managed only from the Exchange 2010 tools.

Enjoy!

Mike Pfeiffer – Microsoft MVP
Director of Unified Communications
Interface Technical Training

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