ISO/IEC 10021-4:2003 PDF

Information technology — Message Handling Systems (MHS): Message transfer system — Abstract service definition and procedures — Part 4:

First page of standard ISO/IEC 10021-4:2003

Open preview (PDF)

Title (English):

ISO/IEC 10021-4:2003

Information technology — Message Handling Systems (MHS): Message transfer system — Abstract service definition and procedures — Part 4:

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 192
Publication date:: December 9, 2003
Edition:: ISO/IEC IS 10021 edition 3 version 1
ICS:: 35.240.20

Delivery type:

Full version25 €Read online 24h10 €Read online 72h15 €

Document language:

enru

Delivery time:Immediate download

Price:25 €

Description (English):

ISO/IEC 10021-4:2003 | ITU-T Rec. X.411 defines the Message Transfer System (MTS) Abstract Service and the MTS Model, and provides an overview of the MTS Abstract Service. It defines both the semantics of the parameters of the MTS Abstract Service and the abstract-syntax of the MTS Abstract Service. ISO/IEC 10021-4:2003 | ITU-T Rec. X.411 defines the Message Transfer Agent (MTA) Abstract Service and refines the model of the MTS to show that the MTS comprises a number of MTAs that interwork with one another to provide the MTS Abstract Service. An overview of the MTA Abstract Service is provided. ISO/IEC 10021-4:2003 | ITU-T Rec. X.411 defines both the semantics of the parameters of the MTA Abstract Service and the abstract-syntax of the MTA Abstract Service. It specifies the procedures performed by MTAs to ensure the correct distributed operation of the MTS.

Technical details

Technical committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
SKU: ISO/IEC 10021-4:2003

Abstract

Overview

ISO/IEC 10021-4:2003 - Information technology - Message Handling Systems (MHS): Message transfer system - Abstract service definition and procedures - Part 4 (aligned with ITU‑T Rec. X.411) defines the Message Transfer System (MTS) Abstract Service and the Message Transfer Agent (MTA) Abstract Service. The standard specifies the semantics and abstract-syntax of service parameters and the procedural rules MTAs use to provide correct, distributed operation of the MTS. It is a foundational document for implementing interoperable message transfer layers in enterprise and OSI‑based messaging environments.

Key Topics

MTS and MTA models: formal modeling of the Message Transfer System and how multiple MTAs interwork to deliver the MTS Abstract Service.
Abstract service definitions: precise semantics of parameters and abstract-syntax for both MTS and MTA services, enabling consistent implementations.
Ports and operations:
- Submission Port - message submission and control operations.
- Delivery Port - message and report delivery operations.
- Administration Port - registration and credential management.
- Transfer Port (MTA) - inter‑MTA transfer operations.
Bind/Unbind procedures: MTS-bind/MTS-unbind and MTA-bind/MTA-unbind behavior for establishing service associations.
Procedures for distributed operation: modules and algorithms for deferred delivery, routing and conversion decisions, error processing, redirection, splitter handling, distribution‑list expansion, loop detection and directory name resolution.
Common parameter types and security: definitions for identifiers, certificates, tokens, time formats and security-related parameters.
Normative references: relationships to OSI, Directory Services and other MHS components (as cited in the standard).

Applications

ISO/IEC 10021-4:2003 is intended for:

Messaging system architects and implementers building MTA software or MHS middleware that must interoperate across domains.
Enterprise IT teams deploying standardized message transfer layers compliant with OSI/ITU models.
Product vendors creating mail gateways, relay agents, or message routers requiring abstract service conformance.
Standards bodies and test labs doing conformance testing and interoperability verification against the MTS/MTA abstract definitions.

Practical uses include designing message transfer protocols, specifying interfaces between mail components, and ensuring consistent handling of routing, delivery reports, and deferred delivery in distributed messaging infrastructures.

Related Standards

ITU‑T Recommendation X.411 (aligned text and model)
Other parts of the ISO/IEC 10021 series and OSI/Directory standards (referenced normatively in the document)

Keywords: ISO/IEC 10021-4:2003, Message Handling Systems, MHS, Message Transfer System, MTS, Message Transfer Agent, MTA, ITU-T X.411, abstract service, message transfer procedures.

Related standards

Mentioned in the description and other ISO standards

Abstract

Overview

Key Topics

MTS and MTA models: formal modeling of the Message Transfer System and how multiple MTAs interwork to deliver the MTS Abstract Service.
Abstract service definitions: precise semantics of parameters and abstract-syntax for both MTS and MTA services, enabling consistent implementations.
Ports and operations:
- Submission Port - message submission and control operations.
- Delivery Port - message and report delivery operations.
- Administration Port - registration and credential management.
- Transfer Port (MTA) - inter‑MTA transfer operations.
Bind/Unbind procedures: MTS-bind/MTS-unbind and MTA-bind/MTA-unbind behavior for establishing service associations.
Procedures for distributed operation: modules and algorithms for deferred delivery, routing and conversion decisions, error processing, redirection, splitter handling, distribution‑list expansion, loop detection and directory name resolution.
Common parameter types and security: definitions for identifiers, certificates, tokens, time formats and security-related parameters.
Normative references: relationships to OSI, Directory Services and other MHS components (as cited in the standard).

Applications

ISO/IEC 10021-4:2003 is intended for:

Messaging system architects and implementers building MTA software or MHS middleware that must interoperate across domains.
Enterprise IT teams deploying standardized message transfer layers compliant with OSI/ITU models.
Product vendors creating mail gateways, relay agents, or message routers requiring abstract service conformance.
Standards bodies and test labs doing conformance testing and interoperability verification against the MTS/MTA abstract definitions.

Related Standards

ITU‑T Recommendation X.411 (aligned text and model)
Other parts of the ISO/IEC 10021 series and OSI/Directory standards (referenced normatively in the document)

Keywords: ISO/IEC 10021-4:2003, Message Handling Systems, MHS, Message Transfer System, MTS, Message Transfer Agent, MTA, ITU-T X.411, abstract service, message transfer procedures.

ISO/IEC 10021-4:2003 PDF

Technical details

Abstract

Overview

Key Topics

Applications

Related Standards

Related standards

Abstract

Overview

Key Topics

Applications

Related Standards

Related standards

Information technology — Message Handling Systems (MHS): Interpersonal messaging system — Part 7: — Technical…

Systems and software engineering — Software life cycle processes

Asset management — Vocabulary, overview and principles

Asset management — Asset management system — Requirements

Information technology — Radio frequency identification device conformance test methods — Part 2: Test method…

Information technology — Multimedia framework (MPEG-21) — Part 22: User Description

Milk — Determination of the lactoperoxidase activity — Photometric method (Reference method)

Carbonaceous materials for the production of aluminium — Cold and tepid ramming pastes — Expansion/shrinkage…