Category: DKIM

BEC
12 Aug. 2025

What is email spoofing and how can you prevent it?

Faisal Misle

Executive summary: Email spoofing is a growing cyber threat where attackers forge the sender’s address to impersonate trusted sources, enabling phishing, business email compromise, and financial fraud. Because legacy email protocols like SMTP lack strong authentication, spoofing can bypass traditional filters. Organizations can mitigate this risk by implementing robust email authentication measures, especially DMARC.…

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DKIM
23 Apr. 2025

The hidden threat: How misconfigured DKIM enables replay attacks

Rahul Powar

Email authentication isn’t just an IT concern. It protects your brand and customers. A single misstep can let attackers spoof your domain, send phishing emails, and destroy customer trust. One of the most dangerous methods? The DKIM replay attack. In this post, we’ll break down how undersigned DKIM keys (signing too little of the…

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DKIM
5 Nov. 2024

First look at DKIM2: The next generation of DKIM

Faisal Misle

In 2011, the original DomainKeys Identified Mail (DKIM1) standard was published. It outlined a method allowing a domain to sign emails, enabling recipients to verify that the email originated from an entity holding a private key that matches the public key published in the domain’s DNS records. Now in 2024, DKIM is ready for…

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