Microsoft Exchange Server 2016 and 2019 affected, but Microsoft released a fix.

Say goodbye to .msix and .msixbundle files in your email (unless your admin whitelists them).

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 ...

Users reported possible Microsoft Outlook problems on Downdetector, but Microsoft had not confirmed a new outage or provided ...

Apple is working on a fix for Exchange access in its Mac apps as Microsoft retires the connection they rely on.

Microsoft is working to resolve an ongoing Exchange Online outage that is delaying email sent to and received from external domains. The company first acknowledged this incident (tracked under ...

Microsoft patched CVE-2026-96940, a critical Exchange Server flaw that could let authenticated attackers access other users' mailboxes.

Thousands of Microsoft enterprise customers reported problems accessing their email as they returned from the weekend, and on Monday afternoon, Microsoft acknowledged widespread problems affecting ...

Organizations that rely on Exchange Online for internal communications have long needed a way to send large volumes of automated messages, such as payroll notifications, IT alerts, and security ...