Disabling AD account does not prevent mailbox access via OWA??

Posted on 2013-02-04
Last Modified: 2013-02-04
I recently found out that even though a mailboxes' AD account is disabled, the mailbox can still be accessed via Outlook Web Access and ActiveSync. My question is this: does changing the AD account's password plug this security hole or must I also remove the mailbox. I need to keep mailboxes, belonging to terminated employees, until all data in them is archived. This takes about a week.

thank you
Question by:cyberleo2000
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LVL 42

Expert Comment

ID: 38851627
reset the password, change the expire date and check again.
LVL 15

Expert Comment

ID: 38851631
If you change the user password then in theory the old user would not be able to use OWA so yes they could not grab their mail. Do this until mail is archived and then remove mailbox and delete AD user.
LVL 15

Accepted Solution

jerseysam earned 500 total points
ID: 38851657
You could also use Exchange manager.

Right-click the user mailbox, properties, mailbox features, Outlook Web Access, and then disable

Author Comment

ID: 38851788
I did a bit more digging and found out that even if the password is changed the mailbox may still be access for a time, minutes to a few hours with the old password since IIS caches that information and it is not changes immediately. Seems like the best practice is a combination of disabling the password as well as disabling features such as activesync, owa and mapi in the mailbox settings. thanks.
LVL 42

Expert Comment

ID: 38851795
Password replication need some time.

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