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Modern Email Security Explained: From Sender Authentication to Transport Security
Sending an email securely requires more moving parts than most people expect, you don’t notice when it works. You really notice when it doesn’t! Email is still one of the most critical, and most abused, communication channels in modern IT environments. While most organizations rely on email every day, not enough people knows how emails, and the security surrounding it, actually works under the hood. This post breaks down the core building blocks of modern email security, fro
Sebastian F. Markdanner
Feb 912 min read


Mastering Microsoft Entra Authentication Contexts – Part 1: What They Are, Why They Matter, and How to Use Them
Over my last few posts, I’ve casually mentioned Authentication Context a few times, so I thought it was about time we gave the feature a proper spotlight. Within Microsoft Entra, we sometimes encounter scenarios where we need to enforce specific conditions for certain sub-actions or unique requirements. While Conditional Access can directly enforce conditions in most cases, there are times when it’s trickier — especially if we want to enforce a condition for a single action
Sebastian F. Markdanner
Aug 18, 20259 min read


Securing Microsoft Business Premium Part 01: The First Step to an Unbreakable Defense
Today kicks off a comprehensive blog series where I’ll delve into the security features of the Business Premium license SKU, offering detailed step-by-step guidance and best practices. In this first installment, we’ll explore the capabilities included in Business Premium and walk through the foundational configurations throughout the Admin center, Microsoft Entra, Microsoft Defender and Microsoft 365 Apps Admin center. These are the key settings I recommend establishing right
Sebastian F. Markdanner
Jan 27, 202519 min read


Mastering Plus Addressing in Microsoft: Simplify Email Management
Managing emails for unlicensed admin accounts? Juggling a shared mailbox flooded with notifications from services and clients? Today’s solution: Plus addressing! In the world of IT administration, juggling multiple identities for a single employee can feel like a high-stakes balancing act. Notifications, admin emails, approval requests, and consent forms all demand clear separation from daily accounts. But licensing admin accounts? That can quickly get complicated. Enter Plus
Sebastian F. Markdanner
Jan 20, 20253 min read
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