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PCMAIL: A distributed mail system for personal computers (RFC1056) Disclosure Number: IPCOM000001863D
Original Publication Date: 1988-Jun-01
Included in the Prior Art Database: 2000-Sep-12
Document File: 30 page(s) / 77K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M.L. Lambert: AUTHOR


Pcmail is a distributed mail system providing mail service to an arbitrary number of users, each of whom owns one or more workstations. Pcmail's motivation is to provide very flexible mail service to a wide variety of different workstations, ranging in power from small, resource-limited machines like IBM PCs to resource-rich (where "resources" are primarily processor speed and disk space) machines like Suns or Microvaxes. It attempts to provide limited service to resource-limited workstations while still providing full service to resource-rich machines. It is intended to work well with machines only infrequently connected to a network as well as machines permanently connected to a network. It is also designed to offer diskless workstations full mail service.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 4% of the total text.

Network Working Group M. Lambert

Request for Comments: 1056 MIT

Obsoletes: RFC-993 June 1988

PCMAIL: A Distributed Mail System for Personal Computers

Table of Contents

1. Status of this Document 1

2. Introduction 2

3. Repository architecture 4

3.1. Management of user mail state 5

3.2. Repository-to-RFC-822 name translation 7

4. Communication between repository and client: DMSP 8

4.1. DMSP commands 8

4.2. DMSP responses 8

4.3. DMSP sessions 11

4.4. General operations 11

4.5. User operations 12

4.6. Client operations 13

4.7. Mailbox operations 14

4.8. Address operations 15

4.9. Subscription operations 15

4.10. Message operations 16

5. Client Architecture 18

5.1. Multiple clients 18

5.2. Synchronization 18

5.3. Batch operation versus interactive operation 20

5.4. Message summaries 20

6. Typical interactive-style client-repository interaction 21

7. A current Pcmail implementation 25

7.1. IBM PC client code 25

7.2. UNIX client code 26

7.3. Repository code 26

8. Conclusions 26

I. DMSP Protocol Specification 28

II. Operations by name 37

III. Responses by number 38

1. Status of this Memo

This RFC 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 ...