Microsoft pulled its November 2024 Change safety updates that it launched earlier this month for Patch Tuesday because of them breaking electronic mail supply.
This determination got here after there have been experiences from admins saying that electronic mail had stopped flowing altogether.
The problem impacts Microsoft Change clients who use transport guidelines, or mail circulation guidelines, in addition to knowledge loss safety guidelines. The mail circulation guidelines filter and redirect emails in transit, whereas the info loss safety guidelines make sure that delicate info is not being shared by way of electronic mail to an outdoor group.
In accordance with Microsoft, some clients discovered that the mail circulation guidelines stopped periodically after they put in the replace. It’s now advising admins who’re noticing this situation to uninstall the November safety updates solely till they’re re-released.
“We’re persevering with the investigation and are engaged on a everlasting repair to handle this situation,” Microsoft said in an replace concerning the difficulty. “We are going to launch it when prepared. We’ve additionally paused the rollout of November 2024 SU to Home windows / Microsoft Replace. Prospects who won’t use Transport or DLP guidelines and didn’t run into the difficulty with guidelines, can proceed utilizing the November SU replace.”