Month: February 2025

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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”