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How to place a mailbox on retention hold and apply retention policy

Placing a mailbox on retention hold suspends the processing of the retention policy for that mailbox. Retention hold is designed for mailboxes whose users are on vacation or away temporarily. During retention hold, users can log on to their mailbox and change or delete items.

M365 Manager Plus' bulk mailbox management feature allows you to configure retention policy and retention hold period for multiple mailboxes in one go. To apply a retention policy, make sure you have a well drafted retention plan, and created the same in Microsoft 365's Exchange Admin Center (EAC)

Steps to place a mailbox on retention hold with M365 Manager Plus

  • Go to the Management tab.
  • Navigate to Exchange Online → Mailbox Management in the left pane.
  • Under Exchange Configurations click on Configure Mailbox Retention Policy.
  • Select the Retention Policy, URL that gives additional information on the policy to be applied, and a retention period for the deleted items.
  • To place mailboxes on retention hold, select the Enable retention hold checkbox, and configure the retention hold duration.
  • In the Find Mailboxes to Modify section, select he Microsoft 365 tenant and the mailboxes.
  • Click on Apply.

Exchange Online Mailbox Retention Hold

In M365 Manager Plus, there is no restriction on the number of mailboxes that can be managed at a time. read more about the management features of M365 Manager Plus, here.


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