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Practical cybersecurity articles, step-by-step guides, and quick-reference cheat sheets — from Active Directory hardening to Microsoft 365 and zero trust. Written by someone who's done the work. No hype, no fluff.
2 results for “smtp” · Clear
The Microsoft 365 2026 Deprecation Deadline Tracker
Every material Microsoft 365, Exchange Online and Entra ID deprecation landing in 2026 — EWS, SMTP AUTH basic auth, Identity Protection risk policies, Azure ACS and more — in date order, with what breaks and the one fix that keeps you ahead of each deadline.
Why Your Emails Go to Spam (and How to Fix It): SPF, DKIM, DMARC and the 2024 Sender Rules
Emails land in spam mostly because of failed or missing authentication (SPF, DKIM, DMARC), weak sender reputation, and content or list problems. Since February 2024, Gmail and Yahoo also enforce authentication, one-click unsubscribe and a spam-rate cap. Here's how to diagnose and fix it.