Dismiss
There will be a system update on Friday, May 5th, 6 PM ET. You may experience a brief service interruption.
Browse Prior Art Database

Post Office Protocol - Version 3 (RFC1939)

IP.com Disclosure Number: IPCOM000004244D
Original Publication Date: 1996-May-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 19 page(s) / 44K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Myers & M. Rose: AUTHOR

Abstract

On certain types of smaller nodes in the Internet it is often impractical to maintain a message transport system (MTS). For example, a workstation may not have sufficient resources (cycles, disk space) in order to permit a SMTP server [RFC821] and associated local mail delivery system to be kept resident and continuously running. Similarly, it may be expensive (or impossible) to keep a personal computer interconnected to an IP-style network for long amounts of time (the node is lacking the resource known as "connectivity").

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 7% of the total text.

Network Working Group J. Myers

Request for Comments: 1939 Carnegie Mellon

STD: 53 M. Rose

Obsoletes: 1725 Dover Beach Consulting, Inc.

Category: Standards Track May 1996

Post Office Protocol - Version 3

Status of this Memo

This document specifies an Internet standards track protocol for the

Internet community, and requests discussion and suggestions for

improvements. Please refer to the current edition of the "Internet

Official Protocol Standards" (STD 1) for the standardization state

and status of this protocol. Distribution of this memo is unlimited.

Table of Contents

1. Introduction ................................................ 2

2. A Short Digression .......................................... 2

3. Basic Operation ............................................. 3

4. The AUTHORIZATION State ..................................... 4

QUIT Command ................................................ 5

5. The TRANSACTION State ....................................... 5

STAT Command ................................................ 6

LIST Command ................................................ 6

RETR Command ................................................ 8

DELE Command ................................................ 8

NOOP Command ................................................ 9

RSET Command ................................................ 9

6. The UPDATE State ............................................ 10

QUIT Command ................................................ 10

7. Optional POP3 Commands ...................................... 11

TOP Command ................................................. 11

UIDL Command ................................................ 12

USER Command ................................................ 13

PASS Command ................................................ 14

APOP Command ................................................ 15

8. Scaling and Operational Considerations ...................... 16

9. POP3 Command Summary ........................................ 18

10. Example POP3 Session ....................................... 19

11. Message Format ............................................. 19

12. References ................................................. 20

13. Security Considerations .................................... 20

14. Acknowledgements ........................................... 20

15. Authors' Addresses ......................................... 21

Appendix A. Differences from RFC 1725 .......................... 22

Appendix B. Command Index ...................................... 23

1. Introduction

On certain types of smalle...