Answered by:
Restrict external contact to Distribution Group

Question
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Hi All,
I have so many external contacts in our Exchange 2010 environment.
Currently those contacts are randomly located on many DL too, I want to prevent the owner DL so he/she cannot modify member for external contacts only, can Exchange do that ?
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Krisna Ismayanto | My blogs: Krisna Ismayanto | Twitter: @ikrisna
Thursday, July 5, 2012 8:50 AM
Answers
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If you want to stop a owner of group from adding existing contacts to a group, then no, that cannot be done. Any mail enabled object can be added to the group membership.
Simon.
Simon Butler, Exchange MVP
Blog | Exchange Resources | In the UK? Hire Me.- Marked as answer by emma.yoyo Thursday, July 12, 2012 1:49 AM
Thursday, July 5, 2012 1:01 PM -
All replies
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If you want to stop a owner of group from adding existing contacts to a group, then no, that cannot be done. Any mail enabled object can be added to the group membership.
Simon.
Simon Butler, Exchange MVP
Blog | Exchange Resources | In the UK? Hire Me.- Marked as answer by emma.yoyo Thursday, July 12, 2012 1:49 AM
Thursday, July 5, 2012 1:01 PM -
You could hide that external contacts from GAL if you dont use those contacts to send emails directly.Thursday, July 5, 2012 1:38 PM
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Hi Krisna,
Any updates?
Frank Wang
TechNet Community Support
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Krisna Ismayanto | My blogs: Krisna Ismayanto | Twitter: @ikrisna
Thursday, July 12, 2012 3:55 PM