How the Managed Folder Assistant implements retention policies

After you apply a retention policy to a mailbox, you can either wait for the next scheduled run of the MFA or start it manually so that the new policy is applied immediately. When the MFA runs, it performs the following tasks:

  • It applies the tags specified in retention policies to the mailboxes covered by these policies and stamps the items in the various folders covered by the policies with the appropriate tag name and expiration date.

  • If a policy defines a retention or expiry period for items, it stamps a Messaging Application Programming Interface (MAPI) property (ElcMoveDate) on the items, indicating the date and time from which the retention period will start. A future run of the ...

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