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🔄Migrating Exchange Online Mailboxes Without a Cross-Tenant License
Microsoft officially requires a cross-tenant migration license to move mailboxes between tenants – but there are cases where it’s not strictly needed. In this post, I share a real-world scenario of cross-tenant Exchange Online migration without purchasing the license. Learn what’s possible, what risks are involved, and how to stay compliant (or at least well-informed).
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🔗Free/Busy Across Forests: Setting It Up with Federation in Exchange
Need to make calendar sharing work between Exchange forests? Federation Trust is your key. In this post, I walk through configuring Free/Busy lookups using Federation – what you need, where it can break, and how to make sure users see each other’s availability across organizational boundaries. A practical setup guide based on real experience.
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🔐Multi-Factor Authentication in Exchange Server: What’s Really Possible
You know MFA is a must-have for cloud security — but what about Exchange Server on-premises? In this post, I explore how multi-factor authentication can be implemented in Exchange, what Microsoft officially supports.
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🕵️♂️Debugging Exchange with Fiddler: Extended Protection in Action
Extended Protection adds an important layer of security to Exchange – but it can also complicate things. In this post, I demonstrate how to use Fiddler to trace authentication behavior, troubleshoot issues, and better understand how Extended Protection works under the hood. A hands-on look into diagnostics with real examples.
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👀Unexpected Mailbox Access in Exchange: When Users See Too Much
What if your users suddenly start seeing other people’s mailboxes – without being granted access? In this post, I dive into a case of unexpected mailbox access in Exchange Server, explain what might cause it, and share how to trace and prevent such incidents. Spoiler: sometimes it’s not what the permissions say – it’s what…
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