How to Apply Retention Tags to Non-Default Folders in Office 365
Types of Retention Tags
Default Policy Tag (DPT) – automatically set to entire mailbox and will be used to tag untagged items that neither have an RPT or any personal retention tags applied.
Retention Policy Tag – automatically applied to default folders in a user’s mailbox. Here is a list of default folders in Outlook:
Archive
Calendar
Conversation History
Deleted Items
Drafts
Inbox
Junk E-mail
Outbox
Recoverable Items
Sent Items
Sync Issues
Tasks
Personal Tag – manually set by users in either Outlook or Outlook Web Access. It can be applied both to folders, including created folders, and individual messages.

How-To Steps to Apply Retention Tags to Non-Default Folders
1. New-RetentionPolicyTag -Name “EVaultRetention” -Type Archive -AgeLimitForRetention 2556 -RetentionAction DeleteAndAllowRecovery
The command will create a retention policy tag (RPT) that will delete after 7 years to just the Archive default folder (-Type Archive)
2. Set-RetentionPolicy “My Policy” -RetentionPolicyTagLinks EVaultRetention”
The command will link our newly created RPT to a policy of your choosing. It can be applied to the default policy or a new one.
3. $UserMailboxes = Get-Mailbox -Filter {(RecipientTypeDetails -eq ‘UserMailbox’)} $UserMailboxes | Set-Mailbox –RetentionPolicy “My Policy”
The command will apply the My Policy retention policy to all mailboxes
OR
Set-Mailbox
name@domain.com
-RetentionPolicy “My Policy”
Which would set the My Policy retention policy to a specific mailbox
4. Start-ManagedFolderAssistant -Identity
name@domain.com
This will push about the above changes to a single mailbox. If you remove the -Identity switch and just execute “Start-ManaagedFolderAssistant” it will apply all mailboxes.
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