AD Account Security Settings Not Holding

Greetings,

I've uncovered a weird situation where I have a couple accounts that are not maintaining their security settings.  Specifically, I have accounts that I need to allow user1 to 'Send As' (via Exchange 2010).  So, I go into the account with in ADUC and make sure that the 'Include inheritable permissions from the object's parent' is checked.  In this case, it is not, so I check it and hit 'Apply'.  Then, within Exchange EMC, I go into 'Manage Send As Permissions and add the existing user.  All seems fine.  Then, within a matter of minutes, the user no longer has any rights to the mailbox and the 'Include Inheritable...' check box is cleared.  It really acts like someone else has the same account open within AD and is saving changes after I do, thus overwriting them.  I know that is not happening.  But I am wondering if there is something that I should be looking for on my DCs that may suggest a problem  Are there Event Viewer logs or Replmon logs that I need to look at?  I've gone through the logs, but am not finding anything obvious.  I have a native 2008 functionality level.

I appreciate any assistance.

Thanks,

Jeremy
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JerAsked:
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Will SzymkowskiConnect With a Mentor Senior Solution ArchitectCommented:
First off you should just need to add the user from the EMC and then let the permissions propegate to Active Directory. Second what type of account can you granting permissions to? Is it a user or group?

Depending on what group/s you are adding it might be removing permisisons based on the Active Directory AdminSDHolder Protected Groups.

Take a look at the article below for more in depth detail.
AdminSDHolder Protected Group

Will.
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JerAuthor Commented:
We're in a transition at the moment.  I agree that everything should be done within EMC, but due to a need to limit access to the actual Exchange Server, we're still using AD and EMC.  In this case, these are all just user accounts.  The accounts were previously existing in an Exchange 2003 environment.  We performed a transition in 2014.  The users that are having their security changed are simply members of Domain Users and nothing else.
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Will SzymkowskiSenior Solution ArchitectCommented:
Are any of these users part of any protected groups? Could you add a user with limited group permissions (just domain users) to see if this the AdminsSDHolder is creating the issue?

This is the only thing that really stands out when you stay you set a permission and it gets removed.

Will.
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JerAuthor Commented:
Still an issue.  Other projects have interfered.
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Will SzymkowskiSenior Solution ArchitectCommented:
Verifying if this is in fact the AdminsSDHolder issue is quite simple. Just make sure that the user you are adding is not part of any protected groups. If it still happens then it is caused by something else in your domain, but this is most likely the cause.

Will.
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JerAuthor Commented:
Still an issue.
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Will SzymkowskiSenior Solution ArchitectCommented:
At this point not sure what is going on. It is very clear that it is related to the AdminSDHolder process which is removing the permissions from this group.

Will.
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Seth SimmonsSr. Systems AdministratorCommented:
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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