ISO/IEC 10021-4:1997/Cor 1:1998

Information technology - Message Handling Systems (MHS): Message transfer system: Abstract service definition and procedures - Technical Corrigendum 1

Technologies de l'information — Systèmes de messagerie (MHS): Système de transfert de messages: Définition et procédures du service abstrait — Rectificatif technique 1

General Information

• Status: Withdrawn
• Publication Date: 26-Aug-1998
• Withdrawal Date: 26-Aug-1998
• ICS: 35.240.20 - IT applications in office work
• Technical Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Drafting Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Current Stage: 9599 - Withdrawal of International Standard
• Start Date: 09-Dec-2003
• Completion Date: 30-Oct-2025

Relations

• Corrects: ISO/IEC 10021-4:1997 - Information technology - Message Handling Systems (MHS): Message transfer system: Abstract service definition and procedures
• Effective Date: 06-Jun-2022
• Revised: ISO/IEC 10021-4:2003 - Information technology - Message Handling Systems (MHS): Message transfer system - Abstract service definition and procedures - Part 4:
• Effective Date: 15-Apr-2008
• Child: ISO/IEC 10021-4:1997 - Information technology - Message Handling Systems (MHS): Message transfer system: Abstract service definition and procedures
• Effective Date: 15-Apr-2008

Standards Content (Sample)

INTERNATIONAL STANDARD ISO/IEC 10021-4:1997
TECHNICAL CORRIGENDUM 1
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Published 1998-09-01
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION   ORGANISATION INTERNATIONALE DE NORMALISATION
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INTERNATIONAL ELECTROTECHNICAL COMMISSION     COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
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Information technology — Message Handling Systems
(MHS): Message transfer system: Abstract service
definition and procedures
TECHNICAL CORRIGENDUM 1
Technologies de l’information — Systèmes de messagerie (MHS): Système de transfert de messages: Définition et
procédures du service abstrait
RECTIFICATIF TECHNIQUE 1
Technical Corrigendum 1 to International Standard ISO/IEC 10021-4:1997 was prepared by Joint Technical
Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 33, Distributed application services.

ICS 35.240.20 Ref. No. ISO/IEC 10021-4:1997/Cor.1:1998(E)
Descriptors: data processing, information interchange, network interconnection, open systems interconnection, data transfer, text
communication, messages, message handling systems.
©
ISO/IEC 1998
Printed in Switzerland
ISO/IEC 10021-4 : 1997/Cor.1 : 1998 (E)
INTERNATIONAL STANDARD
ITU-T RECOMMENDATION
INFORMATION TECHNOLOGY – MESSAGE HANDLING SYSTEMS (MHS):
MESSAGE TRANSFER SYSTEM: ABSTRACT SERVICE DEFINITION
AND PROCEDURES
TECHNICAL CORRIGENDUM 1
1) Subclause 5.3
Add the following to the end of this subclause:
Although the abstract syntax in this Service Definition contains extension markers, it has not been verified that these are present
in all instances that would be required before Packed Encoding Rules could safely be used.
2) New subclause 5.4
Insert a new subclause 5.4:
5.4 Interpretation of UTC time values
Dates and times in the MHS protocols are represented using the ASN.1 UTCTime type which uses only two decimal digits to
represent the year, leaving the century unspecified. Since MHS systems must deal with dates both in the past (e.g. submission
times of old messages which may be held in local storage or forwarded) and in the future (expiry time, deferred delivery time),
it is important to observe a standard convention to avoid inaccurate display or malfunction of the MHS when dates from
different centuries are compared.
The two decimal digits give 100 different years that can be expressed; an implementation has to associate each of these values
with a particular century. The chosen convention is that dates up to ten years prior to the current time and up to forty years
ahead of the current time should be associated with the corresponding century, with the interpretation of the remaining 49
values being implementation dependent. For example, for a system op
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