Recoverable Items Audits, CalendarVersionStoreDisabled, Versions, Deletions and other problems

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When Deletions folder is a substantial portion of Recoverable Items it should help.

If not, then we have to use other solutions.


First, let’s explain meaning of Recoverable Items subfolders:

  • Deletions -This subfolder contains all items deleted from the Deleted Items folder
  • Versions –  If either litigation hold or single item recovery is enabled, this subfolder contains the original and modified copies of the deleted items. This folder isn’t visible to end users
  • Purges –  If either litigation hold or single item recovery is enabled, this subfolder contains all items that are hard deleted. This folder isn’t visible to end users
  • Audits –  If mailbox audit logging is enabled for a mailbox, this subfolder contains the audit log entries


If the Audit folder has a large size, and mailbox has enabled auditing, you can either disable the mailbox audit or change the number of days for which entries are stored on the audited cases.


If, however, a problem with the Versions folder, then there is a problem with the mailbox calendar items.

Each item in the calendar that is modified is saved to this folder.

In some cases, the versioning of the items in the calendar can cause to significantly increase the size of the Versions folder.
This happens for example when the calendar synchronization issues, known problems with iOS 6, as well as frequent meetings to save and modify your calendar.

On Microsoft Exchange 2010 calendar versioning is enabled by default.

To check mailbox for Calendar versioning we need to check CalendarVersionStoreDisabled option like below:

Get-Mailbox JSmith | select CalendarVersion*


Default value of $false means that Calendar Version Logging is enabled by default.

To disable Calendar Version Logging we need to set True:

Set-Mailbox JSmith -CalendarVersionStoreDisabled:$True


Now we wait for Managed Folder Assistant to run and clean recoverable items in mailbox.

If we want to run it manually we should use:

Start-ManagedFolderAssistant -Identity JSmith


Also you can use MFCMapi to delete all not unnecessary items from Recoverable Items.

First donwload MFCMapi (32bit lub 64bit), it depends on your Outlook version.

Next assign full access rights to mailbox JSmith, and create profile in Outlook using online mode for this mailbox and run MFCMapi.

Select Session and Logon and select profile for the user.

Double click on user mailbox and expand Root Container, next right click on Recoverable Items and select open contents table.

Now you can remove items from Recoverable Items folder.


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