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Wednesday, December 7, 2022

Deleting a Common Mailbox Messages after so many days in Exchange servers/Office 365

I have a common mailbox where the messages have to be cleared which are older than 30 days.

Note : This feature requires an Enterprise Client Access License.

Login to EAC (Exchange Admin Center) – Compliance Management – Retention Tags – Click on 1 month Delete.


We are specifying

Delete and Allow recovery – Moving to dumpster then it stays in the dumpster for the retention period specified on the database. if there is a retention specified on the mailbox it takes precedence.

If you choose Permanently delete it never gets moved to dumpster – Non recoverable. We are specifying the item reaching the age of 30 will get archived.


Compliance Management – Retention Policies  – Add the retention tag we created “Click on 1 month Delete”

Choose save


Now apply the Retention Policy on the mailbox

Recipients mailboxes – Mailbox Features – Retention Policy (Choose the policy we created)

Choose save.


Now any Items which are older than 30 days will be archived in the common mailbox.

Satheshwaran Manoharan
Satheshwaran Manoharanhttps://www.azure365pro.com
Specialized in Microsoft Azure - Office 365 / Microsoft Exchange; conducted numerous projects worldwide in designing, supporting, and implementing messaging and virtualization infrastructure for medium-sized and large enterprises. Further, I am a Cloud Architect and Technical Advisor for various start-ups.

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