Exchange 2010 SP2 Retention Poliicy

Posted on 2012-09-20
Last Modified: 2012-10-23
I've setup a retention policy for deleted items, sent items and inbox items.
The policy is to permanently delete items from those 3 folders older than 1 year.

The inbox and sent items one is working perfectly.

The deleted item one is not.

Now first off, let me say that I understand that the deleted item policy is calculated differently than the inbox or sent item one. I know that the clock starts ticking on those when the email is moved to the deleted items folder.

At first this server was Exchange 2010 SP1 and I upgraded it to SP2 to see if that would fix this issue. Now when this was on SP1, I didn't even see a retention tag get applied to the deleted items, but now that it is upgraded to SP2, I do see the retention policy is applied to all items.

However, here is the issue...the retention policy shows the correct expiration date for all items down to ones that were deleted on 8/23/2012, however once you go past that..for example a deleted email that was deleted back say in 9/5/2011 shows an expiration date of 8/23/2013.

I loaded up MFC MAPI and looked at these some of these items, and the ones showing a deletion date of 8/23/2013 but were deleted on 9/5/2011 show a PR_RETENTION_DATE of 9/5/2012. So according to MFC MAPI, it appears the retention date is correct, but it's not getting deleted / not showing up correctly in OWA.

So I'm not sure what's going on here.

Anyone seen this before?

I'm thinking maybe the quick answer for now is to write a script to delete all items in the deleted items folder older than 1 year for now and automate for 1 year till this catches up lol.

Question by:themightydude
    LVL 20

    Expert Comment

    by:Svet Paperov
    Yes, I've seen a similar behavior: the item will be removed from deleted items after the retention period expires calculating from the day when it was applied, even if the item has been in Deleted items for many months before.

    That means, if an item is deleted when RP is already in please, the calculations are correct. But for items, already in Deleted, the counting stars from the day the RP is applied, meaning in your case that they will be deleted after 1 year.
    LVL 4

    Author Comment

    Oh really?

    I thought it would work the same way the inbox and sent items worked. Is there a Microsoft link describing that? Would be helpful to have.
    LVL 20

    Expert Comment

    by:Svet Paperov
    Never found a precise explanation from MS. I came to this conclusion after testing, asking myself the same question and reading several blogs.
    LVL 4

    Accepted Solution

    Sorry the late reply on all this, but I called Microsoft and opened up a case, and basically they told me they weren't sure why it wasn't working. They think there may have been some corruption in the deleted items.

    Anyway, instead of using retention tags, we went ahead and created managed folder polices and those  worked just fine.
    LVL 4

    Author Closing Comment

    fixed with call to Microsoft

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