Security Boulevard, Tuesday, April 28th, 2026
DKIM2 Explained: What's Changing and What to Do
DKIM2 addresses replay attacks, mailing list issues, and backscatter by signing envelope values and creating verification chains at each hop.
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Vol 337 · Issue 5
Email — Archive · Vol 337 Issue 5
2 articles that week
Security Boulevard, Monday, April 27th, 2026
Why Email Deliverability Matters in Multi-Factor Authentication (MFA) Workflows
Email deliverability is critical for MFA security, as delayed or blocked authentication emails can compromise user access and force users to disable security features.
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