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Post Office Protocol - Version 3 (RFC1939)

IP.com Disclosure Number: IPCOM000004244D
Original Publication Date: 1996-May-01
Included in the Prior Art Database: 2019-Feb-12
Document File: 23 page(s) / 28K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Myers: AUTHOR [+1]

Related Documents

10.17487/RFC1939: DOI

Abstract

The Post Office Protocol - Version 3 (POP3) is intended to permit a workstation to dynamically access a maildrop on a server host in a useful fashion. [STANDARDS-TRACK]

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 8% 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

Myers & Rose Standards Track [Page 1]

RFC 1939 POP3 May 1996

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

1. Introduction

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...

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