Office 365 mailbox cleanup powershell Increase the deleted item retention period to 30 days (the maximum value in Exchange Online) so that items aren't purged from the Recoverable Items folder before you can delete them in Step 5. # Parameters to tell the script what to do. Select View Mailbox Size, Find items older than, Find items larger than, View Deleted Items Size, Empty Deleted Items folder, View Conflicts Size, or Empty Conflicts to perform your desired task. The script has been around for many years and Michel has done a great job at keeping it up to date and optimizing it. Perhaps someone has shared information in an email that they shouldn’t have, or maybe some pernicious malware-ridden message has penetrated Exchange Online Protection and reached inboxes. Figure 1: OWA Options reveals “Clean up mailbox” (image credit: Tony Redmond) The feature Conclusion. Recently, all of the members from one O365 group started receiving Group Mailbox full email. 1 Soft Delete Mailboxes from Office 365. However, an additional step is necessary in Office365 to enable this cmdLet: By default, it’s not exposed because the “Mailbox Import Export” role is Sep 13, 2022 ยท I wouldn’t suggest this usually. I’ve tried using the following PowerShell commands, but it doesn’t seem to be deleting anything, even though the search shows over 250,000 items. rofyz wlcnyp wrywgtlj lvt oswt ooof crbffj zcbzp rgo sstmbqd