creating distribution groups in exhange 2013 and a 2008 DC

I created a distribution group in exchange2013 and its not showing up in AD. I can search AD and find it, its in the address book in outlook although the names of the members do not match what is in the group. So in outlook when I add the group contact the names don't match what I see in exchange2013 admin center. the names that are in outlook are in exchange but there are some missing.

Why isn't the group coming into AD? They have in the past
Why aren't all the names included in the contact?
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bankadminAuthor Commented:
I found another group that is doing the same thing. When I send a email to the group in outlook and I expand the group name to show recipients it only shows 1 person but in exchange admin it show the 6 users that should be in there.
Will SzymkowskiSenior Solution ArchitectCommented:
I would be checking your AD replicaiton. Use the following commands...

repadmin /replsum
repadmin /showrepl
repadmin /bridgeheads
DCDiag /v

bankadminAuthor Commented:
should I run those from my exchange or domain controller or both.
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Will SzymkowskiSenior Solution ArchitectCommented:
Run them from your Domain Controllers. If Active Directory Replicaiton is not working properly then your objects might not be replicating to all domain controllers.

You Exchange server might be pointing to one DC and you might be pointing to another and the results are different because you have a possible replication issue.

bankadminAuthor Commented:
I ran them on both DC's I got same results on both. When running the /bridgeheads it didn't error but it didn't list anything under the headers.
When running the dcdiag /v if failed the NCSecDesc

Everything else passed
bankadminAuthor Commented:
I figured out the issue and Im still kicking myself for not figuring it out a lot sooner and without posting a question. I have users that have a contact in AD. What had happened is instead of adding there AD user account I added there contact and since I have there contact setup so there address doesn't show in the GAL the users weren't showing up in the contact. Thanks for the help

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bankadminAuthor Commented:
Thank you for the help sorry for the confusion.
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