RFCs & Other Standards

As a networked product, Axigen follows a large number of RFCs and specifications; below you can find a non-exhaustive list of standards implemented in Axigen.

SMTP

• RFC 2821 – Simple Mail Transfer Protocol

• RFC 821 – Simple Mail Transfer Protocol (obsolete)

• RFC 822 – Format of ARPA Internet text messages

• RFC 974 – Mail routing and the domain system

• RFC 3501 – Internet message access protocol (version 4rev1)

• RFC 3848 – ESMTP and LMTP Transmission Types Registration

SMTP Extensions

• RFC 2821 – Simple Mail Transfer Protocol

• RFC 1869 – SMTP Service Extensions

• RFC 2554 – SMTP Service Extension for Authentication

• RFC 1830 – SMTP Service Extensions for Transmission of Large and Binary MIME Messages

• RFC 2920 – SMTP Service Extension for Command Pipelining

• RFC 1652 – SMTP Service Extension for 8bit-MIME transport

• RFC 1870 – SMTP Service Extension for Message Size Declaration

POP3 and IMAP

• RFC 2195 – IMAP / POP AUTHorize Extension for Simple Challenge / Response

• RFC 2595 – Using TLS with IMAP, POP3, and ACAP

POP3

• RFC 1939 – Post Office Protocol (version 3)

• RFC 2449 – POP3 Extension Mechanism

• RFC 1734 – POP3 AUTHentication command

IMAP

• RFC 3501 – INTERNET MESSAGE ACCESS PROTOCOL – VERSION 4rev1

• RFC 2342 – IMAP4 Namespace

• RFC 2180 – IMAP4 Multi-Accessed Mailbox Practice

• RFC 2683 – IMAP4 Implementation Recommendations

• RFC 2087 – IMAP4 QUOTA extension

• RFC 2359 – IMAP4 UIDPLUS extension

• RFC 2088 – IMAP4 non-synchronizing literals

• RFC 2177 – IMAP4 IDLE command

• RFC 3502 – Internet Message Access Protocol (IMAP) – MULTIAPPEND Extension

• RFC 3348 – The Internet Message Action Protocol (IMAP4) Child Mailbox Extension

• RFC 4314 – IMAP4 Access Control List (ACL) Extension

• RFC 6154 – IMAP LIST Extension for Special-Use Mailboxes – partial support

• RFC 2971 – IMAP4 ID Extension – starting with Axigen X2 (10.2)

HTTP

• RFC 2616 – Hypertext Transfer Protocol – HTTP/1.1

• RFC 2965 – HTTP State Management Mechanism

• RFC 2396 – Uniform Resource Identifiers (URI): Generic Syntax

DNS

• RFC 1034 – Domain names, Concepts and Facilities

• RFC 1035 – Domain names, Implementation and Specification

Sieve Extensions

• RFC 3028 – Sieve: A Mail Filtering Language – extensions defined in the base RFC: fileinto, reject, envelope)

• RFC 3894 – Sieve Extension: Copying Without Side Effects

• RFC 3431 – Sieve Extension: Relational Tests; Comparator extension: i;numeric-comparator

• RFC 3598 – Sieve Email Filtering – Subaddress Extension

• RFC 5229 – Sieve Email Filtering: Variables Extension – starting with Axigen X4 (10.4)

• RFC 6134 – Sieve Extension: Externally Stored Lists – starting with Axigen X4 (10.4)

Generic RFCs

• RFC 2822 – Internet message format

• RFC 2045 – MIME Part One: Format of Internet Message Bodies

• RFC 2046 – MIME Part Two: Media Types

• RFC 2047 – MIME Part Three: Message Header Extensions for Non-ASCII Text

Mailing Lists

• RFC 2919 – List-Id: A Structured Field and Namespace for the Identification of Mailing Lists

• RFC 2369 – The Use of URLs as Meta-Syntax for Core Mail List Commands and their Transport through Message Header * Fields

FTP

• RFC 959 – FILE TRANSFER PROTOCOL (FTP)

Groupware

• RFC 2445 – Internet Calendaring and Scheduling Core Object Specification (iCalendar)

• RFC 2446 – iCalendar Transport-Independent Interoperability Protocol (iTIP) Scheduling Events, BusyTime, To-dos and Journal Entries

• RFC 2447 – iCalendar Message-Based Interoperability Protocol (iMIP)

• RFC 3283 – Guide to Internet Calendaring

• RFC 2426 – vCard MIME Directory Profile

SNMP

• RFC 1157 – A Simple Network Management Protocol (SNMP)

• RFC 3416 – Version 2 of the Protocol Operations for the Simple Network Management Protocol (SNMP)

• RFC 1213 – Management Information Base for Network Management of TCP/IP-based internets: MIB-II

• RFC 3418 – Management Information Base (MIB) for the Simple Network Management Protocol (SNMP)

Authentication / Authorization

• RFC 6238 – TOTP: Time-Based One-Time Password Algorithm – starting with Axigen X3 (10.3)

• RFC 6750 – The OAuth 2.0 Authorization Framework: Bearer Token Usage – partial support, excluding the use of WWW-Authenticate – starting with Axigen X4 (10.4)

• RFC 7519 – JSON Web Token (JWT) – partial support – starting with Axigen X4 (10.4)

• RFC 7662 – OAuth 2.0 Token Introspection – partial support – starting with Axigen X4 (10.4)

OpenID Connect

• OpenID Connect Core 1.0 – partial support – starting with Axigen X4 (10.4)

• OpenID Connect Discovery 1.0 – partial support – starting with Axigen X4 (10.4)