How does DANE improve email security?
DANE improves SMTP security in several ways:
Bypasses the public Certificate Authority system entirely because DANE relies on DNSSEC rather than external certificate authorities.
DANE also prevents attackers from:
issuing fraudulent certificates
intercepting traffic with forged TLS endpoints
forcing downgrade attacks
Because DNSSEC signs the DNS data, DANE guarantees the authenticity of the TLSA record itself. This ensures that SMTP connections use the correct certificate.
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