Delete emails

Question

Hi All

i have a unified group and i want to delete all the emails of that unified group as the mailbox is full. the mailbox has thousands of email. i dont have retention tags for the unified groups. is it possible to delete it all the emails from exchange online PowerShell.

Answer 1

Hi @Glenn Maxwell ,

In theory we can folllow the documention below to delete messages from a unified group using the Security & Compliance Center PowerShell:
Search for and delete email messages
But as indicated in the article above, a maximum of 10 items per mailbox can be removed at one time, because the capability to search for and remove messages is intended to be an incident-response tool pnly. So from my point of view, it's not a good option for your circumstance which needs to remove thousands of emails.

That being said, creating a retention policy as you have mentioned would be a better way to clean up the unified group:

1. Go to Policies > Retention:
   
2. Clieck Retention Policies > New Retention Policy
   
3. Specify the location, choose the group you would like the policy to apply to and finish the remaining steps:
   
4. Wait for up to 1 day for the retention policy to be applied to the group.

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