Exchange Server

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HAFNIUM Highlights the Problem with Removing the Last Exchange Server

Unless you have been living under a rock for the last week, you could not have missed that the Microsoft 365 world has been abuzz with worry after Exchange Server 2010-2019 succumbed to zero-day exploits, believed to being used by a group known as HAFNIUM. These exploits are allowing an attacker to compromise Exchange and…

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Microsoft Warns of Active Exchange Server Exploits, Patches Released

Microsoft has released several new patches for Exchange Server after they discovered an active 0-day vulnerability.

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Microsoft to Crackdown on High Volume Microsoft 365 Email Offenders

Microsoft has announced that users who receive a high number of messages, they will soon be cracking down on the rate at which you can receive email.

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Microsoft Open Sources ESE, the Extensible Storage Engine

In a surprise development, Microsoft has released the source code for the Extensible Storage Engine (ESE) on GitHub. Fans of the non-SQL database engine, which has powered every version of Exchange since the initial 4.0 release twenty-five years ago, now have the chance to peruse the ESE code. Although Microsoft isn’t accepting suggestions to improve…

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Where Microsoft Might be Going with One Outlook

Last October, I wrote about One Outlook, Microsoft’s vision for the future of its family of email clients. The basis of the story was a collection of three technologies deemed critical for the long-term development of Outlook: OWA Powered Experiences (OPX), Microsoft synchronization technology, and the augmentation loop. Mary-Jo Foley’s recent story about the Monarch…

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Exchange Online Rejects Old TLS Connections in January 2021

Time to Make Final Checks It’s natural to take time off during the holiday season to forget about the woes of IT operations. One of the nice things about using a service like Office 365 is that other people take care of running it while you’re away. On the downside, decisions made by the people…

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Microsoft Moves On-Premises Office Servers to a Subscription Model

Last On-Premises Version? Last March, a Microsoft employee caused a stir with an assertion that Exchange 2019 will be the last on-premises version of Microsoft’s enterprise email server. At the time, my assessment was “I don’t expect Microsoft to ship on-premises versions of Exchange or SharePoint in the way they’ve done in the past because…

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Paul Thurrott’s Short Takes: July 17

Because the end is listless, this edition of Short Takes looks at a temporary Outlook problem that broke the Internet, Google’s Microsoft envy, a well-intentioned but ill-conceived plan to fix Edge and Chrome memory usage, Microsoft layoffs, and so much more.

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Purging Unwanted Messages from Exchange Online Mailboxes

Microsoft will remove the Search-Mailbox cmdlet from Exchange Online on July 1, but that doesn’t mean you can’t purge bad messages from user mailboxes. Office 365 content searches and content search actions can hard- or soft-delete messages. Some limitations exist, but not enough to be worried. And we include a PowerShell script to show how to get the job done.

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CVE-2020-0688 Puts Focus on Exchange On-Premises Vulnerabilities

The revelations that Exchange Server has had a vulnerability in the Exchange Control Panel since Exchange 2010 shocked some. Microsoft has patched CVE-2020-0688, but the problem gives on-premises administrators something to think about as they look to the long-term future of their email service. Staying on-premises is an option, but going to the cloud might be more secure.

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