Warum?

• "Opportunistic Security: Some Protection Most of the Time" von V. Dukhovni
• "New e-mail security protocols mandatory within government" von Marco Davids (SIDN)
• "The sad state of SMTP encryption" von Filippo Valsorda

Nutzungsstatistiken

• DANE-Trenddiagramme
• DANE-Statistiken
• .nl-Statistiken zu DANE von SIDN Labs
• Google-Statistik zu STARTTLS

Hintergrundinformationen

• How-to on 'DANE for SMTP' von der Dutch Internet Standards Platform
• Wiki zu 'DANE for SMTP'
• FAQ zu E-Mail-Sicherheitsstandards von SIDN
• Factsheet "Secure the connections of mail servers" vom NCSC-NL
• "IT Security Guidelines for Transport Layer Security (TLS), v2.1" vom NCSC-NL

Spezifikationen

• RFC 3207: SMTP Service Extension for Secure SMTP over Transport Layer Security
• RFC 7672: SMTP Security via Opportunistic DNS-Based Authentication of Named Entities (DANE) Transport Layer Security (TLS)
• RFC 7671: The DNS-Based Authentication of Named Entities (DANE) Protocol: Updates and Operational Guidance