Not sure if there are many Exchange admins out there, but if there are by now you’ve probably noticed there is an issue with mail flowing. Seems to be a bug that is due to the way MS stores the date, can’t handle 2022…
Work around is to disable the anti-malware scanner.
Yep, Exchange Server has a Y2K+22 problem. A little depressing that right now the only way to keep mail flowing is to disable spam/malware scanning, at least until a patch happens. Hope Steve Gibson will go into it in depth, meantime there’s a good article here:
And apparently MS has a fix. Though you need to go find it. From reading, it’s basically stop service, empty a couple of folders, and restart the service.
I wonder what they did. I would think changing a variable type would require an actual software patch.
Steve Gibson talked (will talk as I type this) about this issue as the main topic on the Security Now episode today (#852). A quote from the show notes: