Microsoft Exchange Server on prem gets a little harder to use

The lightweight web client is going away, placing more demands on systems still clinging to Microsoft's on-prem email system.
Hosted on MSN

Microsoft just confirmed attackers are exploiting an Exchange Server zero-day to silently hijack inboxes — CVE-2026-42897 lets them rewrite emails and steal session tokens

Organizations running Microsoft Exchange Server face an active threat after a zero-day vulnerability was confirmed to allow attackers to silently take over inboxes, rewrite email content, and steal ...
Bleeping Computer

Microsoft pulls Exchange security updates over mail delivery issues

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 ...
Redmond Magazine

Microsoft To Target Insecure Exchange Server E-Mail Connections

IT pros may face deadlines after some recent Exchange team announcements regarding Exchange Online. The to-do list for IT pros potentially includes the July 15, 2023 deprecation of the Remote ...
Bleeping Computer

Microsoft: Outlook email sending issues for users with lots of folders

Microsoft has acknowledged a new issue affecting Outlook for Microsoft 365 users and causing email-sending problems for those with too many nested folders. According to Redmond, this is likely related ...
Windows Report

Microsoft Will Disable OWA Light in Exchange Server Update

Microsoft will disable OWA Light by default in the August 2026 Exchange Server update, redirecting users to standard Outlook ...
CNBC

Microsoft Outlook hit with hourslong outage

Microsoft's Outlook email service malfunctioned for over 21 hours. It affected Outlook.com as well as Outlook mobile apps and desktop programs. Outlook has hundreds of millions of users, but Apple and ...