Insights
Microsoft 365 and Azure
3 articles
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Exchange Server 2016 and 2019 reach the end of support in October: what a hybrid estate has to decideTechnical Guidance
Support for Exchange Server 2016 and 2019 ends on 14 October 2025, and in a hybrid estate the server is only part of the question. Here is what Microsoft had documented by late July 2025 about the routes open to you.
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Microsoft 365 tenant-to-tenant migration: what to settle before you move anythingTechnical Guidance
After an acquisition you often end up with two Microsoft 365 tenants and a date by which they should be one. Here's the order we'd settle things in, and what Microsoft's documentation covered for cross-tenant moves in February 2025.
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Conditional Access policies that don’t lock everyone outTechnical Guidance
A Conditional Access policy can lock out the administrator who wrote it. Here's a method for testing before enforcing: emergency accounts, report-only mode, the sign-in logs and a sensible rollout order.