Mike on Twitter: "@JRoosen @msexchangeteam @MSFTExchange @Microsoft @MSFT365Status The fix is to temp disable the anti malware agent on the server. Via the .\Disable-AntiMalwareScanning.ps1 script in the $exscripts directory. Then restart transport service." / Twitter
https://twitter.com/miketheitguy/status/1477109221145473026