Introduction

The elements of service provided by the Message Store Abstract- service defined in CCITT Rec. X.413 (1992) / ISO/IEC 10021- 1:1990 are limited to the storage of delivered messages and their subsequent retrieval by the MS-user. This document proposes extensions to the elements of service offered by the gener al Message Store and the IPMS Message Store to equip them to satisfy a broader range of service requirements. These include the provision of services for the storage of submitted messages, the correlation of replies and IPNs, the modification by the MS-user of certain attributes of stored messages, and the logging of submission and delivery operations.