A little like the Y2K bug, it's been found that Microsoft have a bug in their malware filtering service that is part of Exchange 2016 and later that only started at midnight on Jan 1st 2022. The effect of this bug is that mail delivery stops entirely IF the Malware scanning filter is being used (which by default it is). Here's a sample of some of the messages you would have … [Read more...]
Public Folder Limits for Exchange
Doing a bit of migration work for clients at the moment, and one of the things we are striking with one of the projects are limitations on Public Folders. I hear you ask “What limits on Public Folders??” Well Microsoft has some time after the release of Exchange 2013 decided to publish what they call supported limits on Public Folders. Note that to the best of … [Read more...]