All things Exchange
A common issue when deploying Exchange Online Protection (EOP) and Microsoft Defender for Office 365 (MDO) with on-premises Exchange is making Exchang… Read the rest “Configure On-Premises Exchange For EOP Spam Thresholds”
Extended Protection uses service binding and channel binding to help prevent an authentication relay attack. In an authentication relay attack, a clie… Read the rest “Exchange Server Extended Protection”
The May 2022 security update for Exchange Server 2013, 2016 and 2019 resolved CVE-2022-21978. A common issue is that admins are only doing part of th… Read the rest “Remediate Exchange Security CVE-2022-21978”
In the field, I’m seeing multiple customers that are struggling to implement the DownloadDomain feature. It does require a little prep work and it is … Read the rest “Implementing Exchange DownloadDomain Security”
When designing an upgrade strategy from an older version of Exchange to a newer one, a question that needs to be addressed is do we need to introduce … Read the rest “Exchange 2019 Point of No Return”
Exchange 2019 CU12 has been released to the Microsoft Volume Licensing Center and the public Microsoft Download site! Exchange 2019 has a different s… Read the rest “Exchange 2019 CU12 Released”
Exchange 2016 CU23 has been released to the Microsoft download centre! Exchange 2016 has a different servicing strategy than Exchange 2007/2010 and u… Read the rest “Exchange 2016 CU23 Released”
When discussing network configuration for Office 365, there will be a series of issues and challenges that need to be addressed. Ideally this is all … Read the rest “The Way Things Were–EOP IP Ranges October 2018”
Previously we looked at the Office 2010 client and how it used Autodiscover to detect Exchange Online (EXO) mailbox settings. Outlook 2010 is no longe… Read the rest “Office 365 Autodiscover Lookup Process–Revisited”
The issue of "Why is the Exchange Security Update not installed?" has popped up frequently over the last few months due to the number of security rele… Read the rest “Why Is The Exchange Security Update Not Installed?”