Hey, thanks for circling back and updating! More details here on those mailbox properties in case anyone is curious: https://learn.microsoft.com/en-us/purview/ediscovery-identify-a-hold-on-an-exchange-online-mailbox?view=o365-worldwide#managing-mailboxes-on-delay-hold
After any type of hold is removed from a mailbox, a delay hold is applied. This means that the actual removal of the hold is delayed for 30 days to prevent data from being permanently deleted (purged) from the mailbox. This gives admins an opportunity to search for or recover mailbox items that will be purged after a hold is removed.
So, did you recently remove a hold from these mailboxes? Or were these properties stuck somehow, even though they were more than thirty days old?
Please don't post your low-effort blog spam here. Who the hell is upvoting this? And why is the only comment an AMD fanboy shitpost? I feel like I'm losing my mind.