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Migrating to New Entra ID Authentication Methods

Posted on by Rhoderick Milne [MSFT]
Migrate to Entra Authentication Methods

On September 30th, 2025, the legacy multifactor authentication (MFA) and self-service password reset policies will be removed and you'll manage all authentication methods here in the authentication methods policy. Use this control to manage your migration from the legacy policies to the new unified policy. Learn more

Traditional Azure Multi-Factor Authentication has served organizations well for ye… Read the rest “Migrating to New Entra ID Authentication Methods”

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TLS Web Services Support On Exchange Server 2019 CU14 vs CU15

Posted on by Rhoderick Milne [MSFT]
Exchange Server 2019 CU15 TLS Scan Results

Transport Layer Security (TLS) has always been a critical component of securing communications in Microsoft Exchange Server, ensuring confidentiality and integrity of email traffic both internally and externally. With Exchange Server 2019, Microsoft has steadily evolved TLS support to align with modern security standards and deprecate older, weaker protocols. A notable shift came between Cumulativ… Read the rest “TLS Web Services Support On Exchange Server 2019 CU14 vs CU15”

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AzureArcSetup.exe Crashes On Windows Server 2025

Posted on by Rhoderick Milne [MSFT]
Azure ARC Crash Server 2025

This was an issue encountered during the setup of Azure Arc where the onboarding process unexpectedly crashed.  Azure Arc is designed to extend Azure management and governance to on-premises and multi-cloud servers, so installation reliability is critical. When a setup program setup crashes, it often points to problems with agent dependencies, connectivity to Azure endpoints, or PowerShell module … Read the rest “AzureArcSetup.exe Crashes On Windows Server 2025”

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Quick Tip–Verify Which Hyper-V VMs Have ISO Mounted

Posted on by Rhoderick Milne [MSFT]
Use PowerShell to Easily Show All Mounted ISO

It’s very common that we mount ISO files when needed, then forget to remove them after the fact.

This is generally a non issue until you want to move the mounted ISO file as Hyper-V may have a lock on the file.  Yes we could open up the properties of each VM in the console, but nope.  Not doing that.

Rather than search VMs one by one to see which is the offending VM, just run the below command in Po… Read the rest “Quick Tip–Verify Which Hyper-V VMs Have ISO Mounted”

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Azure Communication Service – Enable DKIM Signing

Posted on by Rhoderick Milne [MSFT]
Azure Communication Service - Enable DKIM Signing

When sending email through Azure Communication Services (ACS), proper sender authentication is essential to ensure that your messages are trusted and successfully delivered. DomainKeys Identified Mail (DKIM) is one of the key technologies that provides this assurance by digitally signing each outgoing message.  This allows recipient mail systems to verify that the email was not altered and genuine… Read the rest “Azure Communication Service – Enable DKIM Signing”

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Exchange 2019 CU15 Released (2025 H1)

Posted on by Rhoderick Milne [MSFT]
Exchange 2019 CU15 Released

Exchange 2019 CU15 has been released to the Microsoft Volume Licensing Center and the public Microsoft Download site!  Exchange 2019 has a different servicing strategy than Exchange 2007/2010 and utilises Cumulative Updates (CUs) rather than the Rollup Updates (RU/UR) which were used previously.    CUs are a complete installation of Exchange 2019 and can be used to install a fresh server or to upd… Read the rest “Exchange 2019 CU15 Released (2025 H1)”

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Lab–Move Exchange Server To New Tenant

Posted on by Rhoderick Milne [MSFT]

Moving a deployed Exchange hybrid environment to a brand new tenant is not something that is typically done.  In all of the years that I've worked with customers on hybrid, a second hand is not needed to count those instances.  The biggest reason for customers doing it was they did not like the tenant name, and wanted to change it.

In this case it was becase the tenant was being forcibly removed du… Read the rest “Lab–Move Exchange Server To New Tenant”

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Save The Date 14th October 2025

Posted on by Rhoderick Milne [MSFT]
Exchange Server 2019 End of Support Dates

The 14th of October 2025 marks another pivotal moment in Microsoft’s product lifecycle, as a large spectrum of very popular and widely deployed software reaches end-of-support. This includes Windows 10 and Windows 11 22H2.  On the productivity front, the extended support for Office 2016 and 2019, along with Visio 2016/2019, Project 2016/2019, and server-side tools like Exchange Server 2016/2019, S… Read the rest “Save The Date 14th October 2025”

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QuickTip – PowerShell Error Due Missing Hyphen

Posted on by Rhoderick Milne [MSFT]

When working with PowerShell, even small formatting issues can cause big problems. A common culprit is the use of “smart quotes,” which look correct but aren’t expected the ASCII character that PowerShell requires.  This leads to frustrating command failures.  In many cases his is because blogging software replaces the standard quote with a "smart quote" automatically.  We can fix that with a Word… Read the rest “QuickTip – PowerShell Error Due Missing Hyphen”

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QuickTip – PowerShell Unable To Run MSIEXEC Command Line

Posted on by Rhoderick Milne [MSFT]
PowerShell MSIExec Help File - Command Failed

In this case there was an issue uninstalling the Azure Migrate Mobility Service, but the same principal will apply to running MSIEXEC commands in PowerShell that are not correctly formatted.  The Azure Migrate Mobility Service is a key component used during server replication to Azure. The Mobility Service agent is installed on machines to capture disk information and send it to the Azure Migrate … Read the rest “QuickTip – PowerShell Unable To Run MSIEXEC Command Line”