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.

Max-severity Exchange server flaw under active exploitation by Kremlin hackers

Russian state hackers are using a maximum-severity vulnerability in Microsoft’s Outlook’s Exchange Server to backdoor ...

Microsoft to stop Exchange 2016 / 2019 security updates in October

Microsoft has reminded customers that it will stop shipping security updates for Exchange 2016 and 2019 through the Extended ...
CSO Online

Russian hackers turn Exchange flaw into ‘half-click’ mailbox takeover

The OWAReaper implant can establish server-side mailbox permissions that remain after credentials are changed and affected ...
TWCN Tech News

Microsoft Exchange administrator has made a change that requires you quit and restart Outlook

This article provides possible solutions to the problem in which Outlook cannot connect to the Exchange mailbox. This issue occurs when a user moves his mailbox from one Microsoft Exchange Server to ...
Windows Report on MSN

OWAReaper Backdoor Targets Microsoft Exchange Users

OWAReaper abuses CVE-2026-42897 to steal OAuth tokens, alter mailbox permissions, and persist inside Exchange accounts.
Bleeping Computer

Microsoft: Exchange 2016 and 2019 have reached end of support

Microsoft has reminded that Exchange Server 2016 and 2019 reached the end of support and advised IT administrators to upgrade servers to Exchange Server SE or migrate to Exchange Online. According to ...