mhkpn Try emptying the Deleted Items folder and then log out. Also all you really need to do once you've removed the holds and set the delay hold to false is run Start-ManageFolderAssistant on the mailbox a couple of times over a few days to see a drop in the deleted data. You need to set them the attribute to false. After a delegate's or manager's mailbox is moved to a new forest in Microsoft 365, users receive the following non-delivery report (NDR) when they send meeting invites to the manager: immersive theater nyc Exchange online auto-expanding archive–Automatic archive of mailbox items in Purges,Versions and Discovery Holds folders - M365 Admin We are rolling out an update which will automatically move any mailbox items preserved in the “Purges”, “Versions”, and “Discovery Holds” folders in the primary mailbox to the archive mailbox daily.If theyre set to true then whatever holds youve removed will still apply for around 30 days. Users receive NDR 5.2.0 when they send meeting invites in Microsoft 365 hybrid environment.

So for this issue, you need to disable that Holds for your affected user mailbox.Exchange Online.

This subfolder isn't visible to end users. DiscoveryHolds: Contains hard-deleted items that have been preserved by an eDiscovery hold or a retention policy and it’s part of RecoverableItems. We have checked your details and found that DiscoveryHolds folder is full.

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