email

The Extensible Provisioning Protocol (EPP) does not inherently support internationalized email addresses because the specifications for these addresses did not exist when EPP was developed. This document describes a command-response extension that adds support for associating an additional email address with an EPP contact object. That additional email address can be either an internationalized email address or an ASCII-only address.

The Certification Authority Authorization (CAA) DNS resource record (RR) provides a mechanism for domains to express the allowed set of Certification Authorities that are authorized to issue certificates for the domain. RFC 8659 contains the core CAA specification, where Property Tags that restrict the issuance of certificates that certify domain names are defined. This specification defines a Property Tag that grants authorization to Certification Authorities to issue certificates that contain the id-kp-emailProtection key purpose in the extendedKeyUsage extension and at least one rfc822Name value or otherName value of type id-on-SmtpUTF8Mailbox that includes the domain name in the subjectAltName extension.

Allied Communications Publication (ACP) 142 defines P_MUL, which is a protocol for reliable multicast suitable for bandwidth-constrained and delayed acknowledgement (Emissions Control or "EMCON") environments running over UDP. This document defines MULE (Multicast Email), an application protocol for transferring Internet Mail messages (as described in RFC 5322) over P_MUL (as defined in ACP 142). MULE enables transfer between Message Transfer Agents (MTAs). It doesn't provide a service similar to SMTP Submission (as described in RFC 6409).

This document explains how MULE can be used in conjunction with SMTP (RFC 5321), including some common SMTP extensions, to provide an alternate MTA-to-MTA transfer mechanism.

This is not an IETF specification; it describes an existing implementation. It is provided in order to facilitate interoperable implementations and third-party diagnostics.

OpenPGP is a message format for email (and file) encryption that lacks a standardized lookup mechanism to securely obtain OpenPGP public keys. DNS-Based Authentication of Named Entities (DANE) is a method for publishing public keys in DNS. This document specifies a DANE method for publishing and locating OpenPGP public keys in DNS for a specific email address using a new OPENPGPKEY DNS resource record. Security is provided via Secure DNS, however the OPENPGPKEY record is not a replacement for verification of authenticity via the "web of trust" or manual verification. The OPENPGPKEY record can be used to encrypt an email that would otherwise have to be sent unencrypted.

The web-based IETF email archive search tool based on the requirements captured in RFC 6778 was deployed in January 2014. This memo captures the requirements for a set of improvements that have been identified during its initial years of community use.

Internet mail determines the address of a receiving server through the DNS, first by looking for an MX record and then by looking for an A/AAAA record as a fallback. Unfortunately, this means that the A/AAAA record is taken to be mail server address even when that address does not accept mail. The No Service MX RR, informally called "null MX", formalizes the existing mechanism by which a domain announces that it accepts no mail, without having to provide a mail server; this permits significant operational efficiencies.

This document describes a header field, SIO-Label, for use in Internet email to convey the sensitivity of the message. This header field may carry a textual representation (a display marking) and/or a structural representation (a security label) of the sensitivity of the message. This document also describes a header field, SIO-Label-History, for recording changes in the message's label.

This document registers code points to allow status codes to be returned to an email client to indicate that a message is being rejected or deferred specifically because of email authentication failures.

This document updates RFC 7208, since some of the code points registered replace the ones recommended for use in that document.

The IETF makes heavy use of email lists to conduct its work. Participants frequently need to search and browse the archives of these lists and have asked for improved search capabilities. The current archive mechanism could also be made more efficient. This memo captures the requirements for improved email list archiving and searching systems. This document is not an Internet Standards Track specification; it is published for informational purposes.

This document registers a trace field clause for use in indicating transitions between handling queues or processing states, including enacting inter- and intra-host message transitions. This might include message quarantining, mailing list moderation, timed delivery, queuing for further analysis, content conversion, or other similar causes, as well as optionally identifying normal handling queues. [STANDARDS-TRACK]

This document, "iCalendar Message-Based Interoperability Protocol (iMIP)", specifies a binding from the iCalendar Transport-independent Interoperability Protocol (iTIP) to Internet email-based transports. Calendaring entries defined by the iCalendar Object Model (iCalendar) are wrapped using constructs from RFC 5322 and MIME (RFC 2045, RFC 2046, RFC 2047, and RFC 2049), and then transported over SMTP. [STANDARDS-TRACK]

This document defines the format of Uniform Resource Identifiers (URIs) to identify resources that are reached using Internet mail. It adds better internationalization and compatibility with Internationalized Resource Identifiers (IRIs; RFC 3987) to the previous syntax of 'mailto' URIs (RFC 2368). [STANDARDS-TRACK]

This specification defines a profile for the use of X.509 Attribute Certificates in Internet Protocols. Attribute certificates may be used in a wide range of applications and environments covering a broad spectrum of interoperability goals and a broader spectrum of operational and assurance requirements. The goal of this document is to establish a common baseline for generic applications requiring broad interoperability as well as limited special purpose requirements. The profile places emphasis on attribute certificate support for Internet electronic mail, IPsec, and WWW security applications. This document obsoletes RFC 3281. [STANDARDS-TRACK]

This document defines an algorithm by which, given an e-mail message, one can extract the identity of the party that appears to have most proximately caused that message to be delivered. This identity is called the Purported Responsible Address (PRA).This memo defines an Experimental Protocol for the Internet community.

This document registers the Enumservices "email", "fax", "sms", "ems", and "mms" using the URI schemes 'tel:' and 'mailto:' as per the IANA registration process defined in the ENUM specification RFC 3761. [STANDARDS-TRACK]

This memo documents a long-standing technique, supported by a large number of mail servers, which allows users to be notified of new mail. In addition to server support, there are a number of clients that support this, ranging from full email clients to specialized clients whose only purpose is to receive new mail notifications and alert a mail client.

In brief, the server sends the string "nm_notifyuser" CRLF to the finger port on the IP address (either configured or last used) of the user who has received new mail. This memo provides information for the Internet community.

This memo discusses policies that require certain labels to be inserted in the "Subject:" header of a mail message. Such policies are difficult to specify accurately while remaining compliant with key RFCs and are likely to be ineffective at best. This memo discusses an alternate, \%standards-compliant approach that is significantly simpler to specify and is somewhat less likely to be ineffective. This memo provides information for the Internet community.

This specification provides for "simple mode" carriage of facsimile data using Internet mail. Extensions to this document will follow. The current specification employs standard protocols and file formats such as TCP/IP, Internet mail protocols, Multipurpose Internet Mail Extensions (MIME), and Tagged Image File Format (TIFF) for Facsimile. It can send images not only to other Internet-aware facsimile devices but also to Internet-native systems, such as PCs with common email readers which can handle MIME mail and TIFF for Facsimile data. The specification facilitates communication among existing facsimile devices, Internet mail agents, and the gateways which connect them.

This document is a revision of RFC 2305. There have been no technical changes. [STANDARDS-TRACK]

This memo makes recommendations for software that automatically responds to incoming electronic mail messages, including "out of the office" or "vacation" response generators, mail filtering software, email-based information services, and other automatic responders. The purpose of these recommendations is to discourage undesirable behavior which is caused or aggravated by such software, to encourage uniform behavior (where appropriate) among automatic mail responders, and to clear up some sources of confusion among implementors of automatic email responders. [STANDARDS-TRACK]

This memo describes the full set of notations needed to represent a text string in a Dial Sequence. A Dial Sequence is normally composed of Dual Tone Multi Frequency (DTMF) elements, plus separators and additional "actions" (such as "wait for dialtone", "pause for N secs", etc.) which could be needed to successfully establish the connection with the target service: this includes the cases where subaddresses or DTMF menu navigation apply.

This document is intended for the implementers of software that use email to send to facsimiles using RFC 2305 and 2532. This is an informational document and its guidelines do not supersede the referenced documents. This memo provides information for the Internet community.

This memo describes a content negotiation mechanism for facsimile, voice and other messaging services that use Internet email. [STANDARDS-TRACK]

This memo describes a simple method of encoding Global Switched Telephone Network (GSTN) addresses (commonly called "telephone numbers") in the local-part of Internet email addresses, along with an extension mechanism to allow encoding of additional standard attributes needed for email gateways to GSTN-based services. [STANDARDS-TRACK]

This memo offers useful suggestions for responsible advertising techniques that can be used via the internet in an environment where the advertiser, recipients, and the Internet Community can coexist in a productive and mutually respectful fashion. This memo provides information for the Internet community.

This memo defines a full syntax for a specific application in which there is a need to represent GSTN (Global Switched Telephone Network) addressing and Internet addressing. [STANDARDS-TRACK]

This memo defines an encoding scheme for the Japanese Characters, describes "ISO-2022-JP-1", which is used in electronic mail [RFC-822], and network news [RFC 1036]. Also this memo provides a listing of the Japanese Character Set that can be used in this encoding scheme. This memo provides information for the Internet community. It does not specify an Internet standard of any kind.

This specification enumerates and describes Internet mail addresses (mailbox name @ host reference) to be used when contacting personnel at an organization. [STANDARDS-TRACK]

The key problem in routing is to map from an O/R Address onto an MTA (next hop). This shall be an MTA which in some sense is "nearer" to the destination UA. This is done repeatedly until the message can be directly delivered to the recipient UA. This memo defines an Experimental Protocol for the Internet community.

This memo describes a proposed Internet Pilot Project that seeks to prove the MHS-DS approach on a larger scale. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.

This RFC defines a format for bibliographic records describing technical reports. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.

This paper presents a classification for e-mail routing issues. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.

There is a need for human beings who use X.400 systems to be able to write down O/R names in a uniform way. This memo is a discussion of this topic. This memo provides information for the Internet Community. It does not specify an Internet Standard of any kind.

This document compares X.400(88) to X.400(84) and describes what problems can be anticipated in the migration, especially considering the migration from the existing X.400(84) infrastructure created by the COSINE MHS project to an X.400(88) infrastructure. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.

The report documents the results of a task force on X.400(1988) deployment of the RARE Mails and Messaging Work Group during the period from November 1992 until October 1993. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.

This tutorial was produced especially to help new gateway managers find their way into the complicated subject of mail gatewaying according to RFC 1327. This memo provides information for the Internet community. It does not specify an Internet standard.

This RFC defines a protocol to provide a mail checking service to be used between a client and server pair. Typically, a small program on a client workstation would use the protocol to query a server in order to find out whether new mail has arrived for a specified user. This memo defines an Experimental Protocol for the Internet community.

This memo describes a protocol for posting messages from workstations (e.g., PCs) to a mail service host. This RFC specifies an Experimental Protocol for the Internet community. It does not specify any standard.

This RFC suggests an electronic mail protocol mapping for the Internet community and UK Academic Community, and requests discussion and suggestions for improvements. This memo does not specify an Internet standard.

This memo is a discussion of the Pcmail workstation based distributed mail system. It is identical to the discussion in RFC-993, save that a new, much simpler mail transport protocol is described. The new transport protocol is the result of continued research into ease of protocol implementation and use issues.

This RFC is a very belated attempt to document a meeting that was held three years earlier to discuss the state of computer mail in the ARPA community and to reach some conclusions to guide the further development of computer mail systems such that a coherent total mail service would continue to be provided.

This RFC consists of notes from a meeting that was held at USC Information Sciences Institute on 11 January 1982, to discuss addressing issues in computer mail. The major conclusion reached at the meeting is to extend the "username@hostname" mailbox format to "username@host.domain", where the domain itself can be further strutured.

Describes FTP reply-code usage in TENEX mail processing.