General - RFC

Supported RFC

RFC	PB	XW	SB
Format of Electronic Mail Messages
RFC 1468 - Japanese Character Encoding for Internet Messages
RFC 1557 - Korean Character Encoding for Internet Messages
RFC 2045 - MIME: Format of Internet Message Bodies
RFC 2046 - MIME: Media Types
RFC 2047 - MIME: Message Header Extensions for n-ASCII Text
RFC 2048 - MIME: Registration Procedures
RFC 2049 - MIME: Conformance Criteria and Examples
RFC 2076 - Common Internet Message Headers
RFC 2231 - MIME: Character Sets, Languages, and Continuations
RFC 2480 - Gateways and MIME Security Multiparts
RFC 2557 - MIME Encapsulation of Aggregate Documents, such as HTML (MHTML)
RFC 4021 - Registration of Mail and MIME Header Fields
RFC 4648 - The Base16, Base32, and Base64 Data Encodings
RFC 5064 - The Archived-At Message Header Field
RFC 5322 - Format of Electronic Mail Messages
RFC 5951 - A Recommendation for IPv6 Address Text Representation

Simple Mail Transfer Protocol (SMTP)
RFC 952 - DOD Internet Host Table Specification
RFC 974 - Mail Routing and the Domain System
RFC 1123 - Requirements for Internet Hosts - Application and Support
RFC 1652 - SMTP Service Extension for 8bit-MIMEtransport
RFC 1846 - SMTP 521 Reply Code
RFC 1869 - SMTP Service Extensions
RFC 1870 - SMTP Message Size Declaration
RFC 1985 - SMTP Service Extension for Remote Message Queue Starting
RFC 2034 - SMTP Service Extension for Returning Enhanced Error Codes
RFC 2554 - SMTP Service Extension for Authentication
RFC 2920 - SMTP Service Extension for Command Pipelining
RFC 3030 - SMTP Service Extensions for Transmission of Large Messages
RFC 3207 - SMTP Service Extension for Secure SMTP over TLS
RFC 3461 - SMTP Service Extension for Delivery Status
RFC 3462 - The Multipart/Report Content Type for System Administrative Messages
RFC 3463 - Enhanced Mail System Status Codes
RFC 3464 - An Extensible Message Format for Delivery Status Notifications
RFC 3696 - Application Techniques for Checking and Transformation of Names
RFC 3798 - Message Disposition Notifications
RFC 3834 - Recommendations for Automatic Responses to Electronic Mail
RFC 4409 - Message Submission for Mail
RFC 4954 - SMTP Service Extension for Authentication
RFC 5321 - Simple Mail Transfer Protocol
RFC 6647 - E-Mail Greylisting: An Applicability Statement for SMTP

Post Office Protocol (POP3)
RFC 1939 - Post Office Protocol - Version 3
RFC 1734 - POP3 AUTHentication command
RFC 2195 - IMAP/POP AUTHorize Extension for Simple Challenge/Response
RFC 2449 - POP3 Extension Mechanism
RFC 2595 - Using TLS with IMAP, POP3 and ACAP
RFC 5034 - POP3 SASL Authentication Mechanism

Internet Message Access Protocol (IMAP)
RFC 1730 - Internet Message Access Protocol - Version 4
RFC 1731 - IMAP4 Authentication Mechanisms
RFC 2060 - Internet Message Access Protocol - Version 4rev1
RFC 4959 - IMAP Ext for SASL Initial Client Response

Domain Names System (DNS)
RFC 1034 - Domain Names - Concepts and Facilities
RFC 1035 - Domain Names - Implementations and Specifications
RFC 1886 - DNS Extensions to support IP version 6
RFC 2671 - Extension Mechanisms for DNS (EDNS0)
RFC 2782 - A DNS RR for specifying the location of services (DNS SRV)
RFC 2915 - The Naming Authority Pointer
RFC 3225 - Indicating Resolver Support of DNSSEC
RFC 4033 - DNS Security Introduction and Requirements
RFC 4034 - Resource Records for the DNS Security Extensions
RFC 4035 - Protocol Modifications for the DNS Security Extensions
RFC 4472 - Operational Considerations and Issues with IPv6 DNS
RFC 4616 - The PLAIN Simple Authentication and Security Layer (SASL) Mechanism
RFC 5001 - DNS Name Server Identifier (NSID) Option
RFC 7505 - A "Null MX" No Service Resource Record for Domains That Accept No Mail

Hypertext Transfer Protocol (HTTP)
RFC 1630 - Universal Resource Identifiers in WWW
RFC 1867 - Form-based File Upload in HTML
RFC 1945 - Hypertext Transfer Protocol -- HTTP/1.0
RFC 2616 - Hypertext Transfer Protocol -- HTTP/1.1
RFC 2732 - Format for Literal IPv6 Addresses in URLs
RFC 2817 - Upgrading to TLS Within HTTP/1.1
RFC 3143 - Known HTTP Proxy/Caching Problems
RFC 3986 - Uniform Resource Identifier (URI): Generic Syntax
RFC 6265 - HTTP State Management Mechanism
RFC 7159 - The JavaScript Object Notation (JSON)
RFC 7230 - HTTP/1.1: Message Syntax and Routing
RFC 7231 - HTTP/1.1: Semantics and Content
RFC 7232 - HTTP/1.1: Conditional Requests
RFC 7233 - HTTP/1.1: Range Requests
RFC 7234 - HTTP/1.1: Caching
RFC 7235 - HTTP/1.1: Authentication
RFC 7236 - HTTP Authentication Scheme Registrations
RFC 7237 - HTTP Method Registrations
RFC 7238 - HTTP Status Code 308 (Permanent Redirect)
RFC 7239 - Forwarded HTTP Extension
RFC 7240 - Prefer Header for HTTP

Sender Policy Framework (SPF)
RFC 5451 - Message Header Field for Indicating Message Authentication Status
RFC 5782 - DNS Blacklists and Whitelists
RFC 6212 - Authentication-Results Registration for Vouch by Reference Results
RFC 7208 - Sender Policy Framework (SPF), Version 1
RFC 7489 - Domain-based Message Authentication, Reporting, and Conformance (DMARC)

DomainKeys Identified Mail (DKIM)
RFC 4870 - Domain E-Mail Authentication Using Public Keys (DomainKeys)
RFC 5016 - Requirements for a DomainKeys Identified Mail (DKIM)
RFC 5451 - Message Header Field for Indicating Message Authentication Status
RFC 5617 - DomainKeys Identified Mail (DKIM) Author Domain Signing Practices (ADSP)
RFC 5782 - DNS Blacklists and Whitelists
RFC 6212 - Authentication-Results Registration for Vouch by Reference Results
RFC 6376 - DomainKeys Identified Mail (DKIM) Signatures
RFC 7489 - Domain-based Message Authentication, Reporting, and Conformance (DMARC)

S/MIME
RFC 3851 - Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.1
RFC 5019 - The Lightweight Online Certificate Status Protocol (OCSP) Profile
RFC 5652 - Cryptographic Message Syntax (CMS)
RFC 5751 - Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.2
RFC 6021 - Representation and Verification of Certificate (PKIX) in TLS
RFC 6698 - DNS-Based Authentication of Named Entities (DANE) Protocol: TLSA
RFC 7672 - SMTP Security via DNS-Based Authentication of Named Entities (DANE)
RFC 8162- Using Secure DNS to Associate Certificates with Domain Names for S/MIME

Internationalized Domain Names (IDM)
RFC 3454 - Preparation of Internationalized Strings ("stringprep")
RFC 3491 - Nameprep: A Stringprep Profile for Internationalized Domain Names (IDN)
RFC 3492 - Punycode: Encoding of Unicode for Internationalized Domain Names (IDNA)
RFC 5891 - Internationalized Domain Names in Applications (IDNA): Protocol

Email Address Internationalization (EAI)
RFC 6530 - Overview and Framework for Internationalized Email
RFC 6531 - SMTP Extension for Internationalized Email
RFC 6532 - Internationalized Email Headers
RFC 6533 - Internationalized Delivery Status and Disposition Notifications


Netscape AUTH=LOGIN
Unicode