DMARC, DKIM and SPF: the guide that doesn't oversimplify
Complete technical guide to correctly configuring the three email authentication records on Microsoft 365 — with real DNS examples and the most common mistakes we see during audits.
No clickbait. No "5 things you didn't know". Technical content written for people who need to actually understand.
Complete technical guide to correctly configuring the three email authentication records on Microsoft 365 — with real DNS examples and the most common mistakes we see during audits.
The three baseline policies, mistakes to avoid and safe rollout. A technical guide from those who configure it daily.
How to audit in 20 minutes, orphaned licences, paid but unused services, the difference between Business and Enterprise.
Initial checks, warning signs, how to map admin accounts and build documentation from scratch.
Per-user MFA vs Conditional Access, authentication methods to enable and disable, rollout without a week of tickets.
Licenses, consulting, migration tools, training and hidden costs. With a budget table by tenant size and prices updated for July 2026.
Prerequisites, IMAP method, DNS cutover, calendar and Drive migration: everything you need to know before you start — and the mistakes to avoid.
One email every two weeks, only when we have something technical to say. No promotional newsletter.