Maybe AdminSDHolder is biting you?
Here's an article that talks about the Send-As specifically, but it's more than just that:
http://support.microsoft.com/kb/907434/
If the user in question is a member of any of the following groups, then you could be seeing this:
The following list describes the protected groups in Windows 2000:
•
Enterprise Admins
•
Schema Admins
•
Domain Admins
•
Administrators
The following list describes the protected groups in Windows Server 2003 and in Windows 2000 after you apply the 327825 hotfix or you install Windows 2000 Service Pack 4:
•
Administrators
•
Account Operators
•
Server Operators
•
Print Operators
•
Backup Operators
•
Domain Admins
•
Schema Admins
•
Enterprise Admins
•
Cert Publishers
Additionally the following users are also considered protected:
•
Administrator
•
Krbtgt
The above was taken from: http://support.microsoft.com/kb/817433/
Robert Williams
From: [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED]] On Behalf Of Danny
Sent: Thursday, September 07, 2006 10:49 AM
To: [email protected]
Subject: [ActiveDir] AD object (User accounts) Permissions dissappearing
Environment: Windows Server 2003 R2 and 2000 mixed AD forest with Exchange Server 2003 SP2 and one BES (Blackberry Enterprise Server) server.
Scenario: Existing AD account with full Exchange mailbox and provisioned BES user. Out of the blue the user is unable to send from their BlackBerry. Permissions are checked in ADUC, and the required SendAs permission granted to the BES account have disappeared. This has happened to new and existing users.
I do not know where to start. I am reviewing a dcdiag /e /v to see if there are any potentially related problems.
Thanks,
...D2006-09-07, 13:03:30
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