Practical docs and tools for messy IT.
Microsoft 365, Azure, Security and Backup documentation based on real-world deployments, troubleshooting and field experience.
Recent Docs
Newest documentation and field notes.
Demystifying SPF: The Email Bouncer Explained
A practical explanation of SPF records, what they do, what they do not protect against, and why SPF is only one part of email authentication.
Mail SorceryHow Can You Break SPF? A Tour Of Common Mistakes
An overview of how SPF records become broken or bloated over time, from forgotten CRM systems to mystery scanners nobody dares to unplug.
Mail SorceryHow To Fix SPF: A Practical Cleanup Guide
A step-by-step, practical approach to cleaning up a messy SPF record, identifying legitimate senders, and moving safely toward a hardened policy.
Mail SorcerySPF Breaking During Forwarding: Why Legitimate Mail Still Fails
Why SPF often fails when email is forwarded, why DKIM tends to survive better, and why SPF should never be your only line of email authentication.
Recent Tools
Small utilities that support the docs.