Released: January 2022 Exchange Server Security Updates

Wess33

the messages you see in a stuck in a "Retry" is the reason you see logs of STOREDRV. those messages pop-up due to insufficient resources to process a large volume of mails stuck in a queue.
output of code below should give you a view of what messages are being stuck ( being legit or not  - change hostname server from 1st line )

$exchange = "EX01","EX02" #change your hostname to desired
foreach ($exch in $exchange)
	{
	$failedmessages = get-queue -server $exch -filter {Status -eq "Retry"}
	foreach ($msg in $failedmessages) 
		{
			Get-message -queue $msg.identity #| Remove-Message -Confirm:$false -WithNDR $false
		}
	}

 
if the messages are being untrusty/spam, you can remove them by removing # from 7th line.

also note - not long ago there was an issue with filtering module in exchange not getting an update
you should probably check this thread and see if you apply to it: https://techcommunity.microsoft.com/t5/exchange-team-blog/email-stuck-in-exchange-on-premises-transport-queues/bc-p/3050765

Regards, Hubert