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Email — Archive · Vol 339 Issue 1

4 articles that week

Security Boulevard, Friday, June 5th, 2026

How to Split a DKIM Record

Vol 339 · Issue 1 · 2026-06-05

A guide to splitting long 2048-bit DKIM keys into multiple quoted strings so they fit DNS TXT record limits.

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Security Boulevard, Friday, June 5th, 2026

How DMARC Helps Detect Organized SPF Abuse Schemes

Vol 339 · Issue 1 · 2026-06-05

Dmarcian shows how DMARC monitoring exposes organized SPF abuse via dangling DNS CNAMEs and shared records.

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Security Boulevard, Friday, June 5th, 2026

Email Security Needs Its Periodic Table Moment

Vol 339 · Issue 1 · 2026-06-05

Email security should classify attacks by attacker intent rather than technique, mirroring Mendeleev's periodic-table shift.

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Security Boulevard, Tuesday, June 2nd, 2026

How to Set Up Email Authentication for a Newly Registered Domain

Vol 339 · Issue 1 · 2026-06-02

A guide to configuring SPF, DKIM, and DMARC on a newly registered domain to prevent spoofing and improve deliverability.

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