The latest Patch Tuesday security update from Microsoft rolled out August 8, complete with six critical reasons to install it as soon as possible. When it came to certain Exchange Server admins, ...

Microsoft has pulled the November 2024 Exchange security updates released during this month's Patch Tuesday because of email delivery issues on servers using custom mail flow rules. This issue affects ...

Microsoft has identified one of the critical vulnerabilities in Exchange Server that the company disclosed in February's Patch Tuesday update as actually being a zero-day threat that attackers are ...

Microsoft has released hotfix updates to address multiple known issues impacting Exchange servers after installing the March 2024 security updates. Although the April 2024 HU is optional, it also adds ...

Editor's note: This story was updated with new information. Microsoft 365 users woke up to issues signing onto their email accounts Monday morning. The issue seemed to start before 4 a.m. MT with the ...

Microsoft Exchange administrators running versions older than March 2023 need to update or they won’t get the latest security mitigations, says an expert. But, David Shipley added, even better advice ...