Unable to modify Exchange 2007 Dynamic Distribution Group
Situation: When we try to modify Dynamic Distribution Group, below message is shown in “Filter” tab: “The Dynamic Distribution Group was created with the Exchange Management Shell. You can use the Exchange Management Shell to modify the filter." Solution: Edit the specific Dynamic Distribution Group in ADSIEdit, change the following value from 1 to 2: Attribute: msExchQueryFilterMetadata Old value: Microsoft.Exchange12.8f91d340bc0c47e4b4058a479602f94c:RecipientFilterType=1 New value: Microsoft.Exchange12.8f91d340bc0c47e4b4058a479602f94c:RecipientFilterType=2 (Note: The attribute after Microsoft.Exchange is variable) Ref: http://blog.craigirvinsworld.com/2010/04/unable-to-modify-exchange-2007-dynamic.html