Office 365

M365 Mail Security with DKIM and DMARC - Technical implementation and best practices

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Banner - M365 Mail Security with DKIM and DMARC

Forged sender addresses and domain-based spoofing attacks continue to be among the most effective attack vectors in email traffic. In the Microsoft 365 world, SPF, DKIM and DMARC are important and necessary building blocks for protecting sender domains, optimizing deliverability and making abuse transparent. However, consistent, technically sound implementation and ongoing operation are crucial. In this article, I will show you how to correctly implement DKIM and DMARC in Microsoft 365, what pitfalls there are and how to efficiently secure operations.

Microsoft Sentinel for Microsoft 365 – a must have!

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Microsoft Sentinel is a cloud-native SIEM and SOAR solution. Microsoft 365 offers integrated security functions for Azure Active Directory (Entra), Microsoft Defender for Office 365, Microsoft Defender for Endpoint and Microsoft Cloud App Security. However, these features do not cover all possible attack vectors and vulnerabilities that hackers could exploit. In this blog post, I explore how Microsoft Sentinel extends the capabilities of Microsoft Defender XDR (and other Defender products).

Microsoft Teams Multi-Windows Rollout

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The lack of different windows in teams has disturbed many active users and probably limited their productivity. While the predecessor Skype for Business, for example, allows several chats to be opened simultaneously and side by side, this was not possible with Microsoft Teams until now. A user is particularly restricted when he or she is in an online meeting ... Read more

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