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Last updated 23 April 2025
DNS-based Authentication of Named Entities (DANE)
Information resource on DANE
Domain Key Identified Message (DKIM)
Information resource on DKIM
Domain Name System Security Extensions (DNSSEC)
Information resource on DNSSEC
Domain-based Message Authentication, Reporting & Conformance (DMARC)
Information resource on DMARC
Hypertext Transfer Protocol Secure (HTTPS)
Information resource on HTTPS
Internet Protocol Version 6 (IPv6)
Information resource on IPv6
Sender Policy Framework (SPF)
Information resource on SPF
Start Transport Layer Security (STARTTLS)
Information resource on StartTLS
Transport Layer Security (TLS)
Information resource on TLS