NIS2 and Email Security: What EU Senders Need to Know
The NIS2 directive makes email authentication and transport security a regulatory matter for thousands of EU organizations. What it requires and where email fits.
#Email Security
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DKIM Replay Attacks: How Spammers Weaponize Your Valid Signatures
A DKIM signature stays valid no matter who forwards the message. How replay attacks abuse that property to spend your reputation, and the defenses that limit the damage.