Exchange Server Subscription Edition
In this article, Jaap Wesselius provides an overview of Exchange SE, discusses possible upgrade paths, and outlines Exchange server support.
August 7, 2025
Latest Articles
Microsoft Outage, Exchange Cybersecurity Issues, and Teams Delivers Big New Features: The Practical 365 Podcast S3 E30
On the show this week, we're delving into the recent Microsoft Cloud outage, new Exchange Security patches, new Teams Feature, plus much more!
June 26, 2023
Exchange Server 2019 Gains Support for Modern Authentication
After seemingly ignoring the situation for years, Microsoft delivered modern authentication for Exchange Server (for pure on-premises organizations) in Exchange 2019 CU13. The solution uses ADFS to issue and manage the OAuth 2.0 tokens and is supported by the latest version of Outlook for Windows. Support for other clients is in the works.
May 4, 2023
Microsoft Purview for Compliance + Last Exchange Server: S3, Ep. 1
Season 3 of the podcast discusses the biggest news for Exchange Hybrid organizations - as well as the changes from Azure Purview to Microsoft Purview - timely changes coming to the world of Microsoft 365 compliance.
May 2, 2022
The Practical 365 Update – Episode 34: Why we still need to talk about Exchange
For the first episode of 2022, Paul Robichaux and I didn't think we'd still be talking about Microsoft Exchange. But, here we are - as with the new year, new problems in Exchange On-Premises greeted Exchange admins. On the show this week we discuss Y2K22 first, and then take a deep dive into why 2022 is beginning, yet again, with Exchange On-Premises issues.
January 7, 2022
How to Configure Exchange Server 2019 for SMTP Anonymous Relay
Nicolas Blank provides step-by-step instructions on configuring Exchange 2019 as an anonymous relay within your own network.
November 19, 2021
Microsoft Releases November 2021 Security Updates for Exchange Server
Microsoft has issued security updates for Exchange 2013, 2016, and 2019. The updates can only be applied to servers running up-to-date cumulative updates. Organizations running Exchange 2016 or 2019 should apply the updates as a matter of urgency because of a known vulnerability circulating in the wild.
November 9, 2021
Stop Publishing Exchange to the Internet After Migrating to Exchange Online
If you've migrated to Exchange Online, make sure you stop publishing your Exchange Servers to the internet. After a standard Hybrid migration, you still might be reliant on Exchange Server and in this article you can find out why and how to move remaining web services to Microsoft 365.
October 4, 2021
Another Exchange vulnerability revealed with attempted exploits seen in the wild
A new Exchange vulnerability has been disclosed this week known as ProxyToken that allows someone who can access an Exchange 2013, 2016 or 2019 server over HTTPS to perform configuration actions against mailboxes of their choosing, such as setting forwarding rules. Find out what you need to do to protect your organization.
August 31, 2021
Microsoft Issues Security Updates for Exchange On-Premises Servers
Microsoft has released security updates for Exchange 2013, Exchange 2016, and Exchange 2019 to fix some remote code execution vulnerabilities. It's time to update your on-premises servers again, including those used for hybrid management. Let's not give those nasty hackers any easy targets to attack.
July 13, 2021
Microsoft Delays June 2021 Cumulative Update for Exchange Server
Microsoft has delayed the release of the June 2021 cumulative updates for Exchange Server for two weeks to integrate the Windows Antimalware Scan interface (AMSI). The change will allow Exchange 2016 and Exchange 2019 servers running on Windows Server 2016 or later to integrate antimalware engines to check HTTP requests for potential problems. If ever there was good reason to delay an update, this is it.
June 12, 2021
Attack on Exchange Servers Gives Impetus to Move Email to the Cloud
The Hafnium attack on thousands of on-premises Exchange servers is a wake-up call for their administrators and the organizations using the email service. Ten years ago, it was a reasonable decision to stay on-premises. Five years ago, you could argue the same case and companies with bad network connectivity to the internet or specific security requirements were happy to stay on-premises. Now? In a world of increasing threat, staying on-premises looks a lot more risky. For most, it's time to move to the cloud.
March 8, 2021
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