Set-DistributionGroup failure "is not an individual recipient"

Having problem in chaning the "Message Delivery Restriction" for a DL, After adding a group to that getting error ""domain.com/OU/DL/Group_Name" is not an individual recipient object"
set-distribution.jpg
Arabsoft-ACSAsked:
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AkhaterConnect With a Mentor Commented:
It seems that this group is not a universal group

set-distribution group will only work for universal groups, exchange 2007 only supports universal distribution groups
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