RFC 8314: Cleartext Considered Obsolete: Use of Transport Layer Security (TLS) for Email Submission and Access

This specification outlines current recommendations for the use of Transport Layer Security (TLS) to provide confidentiality of email traffic between a Mail…

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Outgoing relationships (28 related RFCs)

Updates, Normative reference — RFC 3501: INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1
Updates, Normative reference — RFC 1939: Post Office Protocol - Version 3
Updates, Informative reference — RFC 2595: Using TLS with IMAP, POP3 and ACAP
Updates, Normative reference — RFC 6409: Message Submission for Mail
Updates — RFC 6186: Use of SRV Records for Locating Email Submission/Access Services
Updates, Informative reference — RFC 5068: Email Submission Operations: Access and Accountability Requirements
Normative reference — RFC 2119: Key words for use in RFCs to Indicate Requirement Levels
Normative reference — RFC 5246: The Transport Layer Security (TLS) Protocol Version 1.2
Normative reference — RFC 5234: Augmented BNF for Syntax Specifications: ABNF
Normative reference — RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile
Normative reference — RFC 793: Transmission Control Protocol
Normative reference — RFC 4033: DNS Security Introduction and Requirements
Normative reference — RFC 5322: Internet Message Format
Normative reference — RFC 6698: The DNS-Based Authentication of Named Entities (DANE) Transport Layer Security (TLS) Protocol: TLSA
Normative reference — RFC 3207: SMTP Service Extension for Secure SMTP over Transport Layer Security
Normative reference — RFC 5034: The Post Office Protocol (POP3) Simple Authentication and Security Layer (SASL) Authentication Mechanism
Normative reference — RFC 7672: SMTP Security via Opportunistic DNS-Based Authentication of Named Entities (DANE) Transport Layer Security (TLS)
Normative reference — RFC 7817: Updated Transport Layer Security (TLS) Server Identity Check Procedure for Email-Related Protocols
Informative reference — RFC 4346: The Transport Layer Security (TLS) Protocol Version 1.1
Informative reference — RFC 5321: Simple Mail Transfer Protocol
Informative reference — RFC 6125: Representation and Verification of Domain-Based Application Service Identity within Internet Public Key Infrastructure Using X.509 (PKIX) Certificates in the Context of Transport Layer Security (TLS)
Informative reference — RFC 6066: Transport Layer Security (TLS) Extensions: Extension Definitions
Informative reference — RFC 4422: Simple Authentication and Security Layer (SASL)
Informative reference — RFC 6335: Internet Assigned Numbers Authority (IANA) Procedures for the Management of the Service Name and Transport Protocol Port Number Registry
Informative reference — RFC 2979: Behavior of and Requirements for Internet Firewalls
Informative reference — RFC 4954: SMTP Service Extension for Authentication
Informative reference — RFC 7469: Public Key Pinning Extension for HTTP
Informative reference — RFC 3848: ESMTP and LMTP Transmission Types Registration

Incoming relationships (3 related RFCs)

Updated by, Normatively referenced by — RFC 8997: Deprecation of TLS 1.1 for Email Submission and Access
Normatively referenced by — RFC 8689: SMTP Require TLS Option
Informatively referenced by — RFC 8744: Issues and Requirements for Server Name Identification (SNI) Encryption in TLS