Network Working Group R. Gellens Request for Comments: 2476 QUALCOMM Category: Standards Track J. Klensin MCI December 1998 Message Submission 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. Copyright Notice Copyright (C) The Internet Society (1998). All Rights Reserved. Table of Contents 1. Abstract . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Document Information . . . . . . . . . . . . . . . . . . . 3 2.1. Definitions of Terms Used in this Memo . . . . . . . . . 3 2.2. Conventions Used in this Document . . . . . . . . . . . 4 3. Message Submission . . . . . . . . . . . . . . . . . . . . . 4 3.1. Submission Identification . . . . . . . . . . . . . . . 4 3.2. Message Rejection and Bouncing . . . . . . . . . . . . . 4 3.3. Authorized Submission . . . . . . . . . . . . . . . . . 5 3.4. Enhanced Status Codes . . . . . . . . . . . . . . . . . 6 4. Mandatory Actions . . . . . . . . . . . . . . . . . . . . . 6 4.1. General Submission Rejection Code . . . . . . . . . . . 6 4.2. Ensure All Domains are Fully-Qualified . . . . . . . . 6 5. Recommended Actions . . . . . . . . . . . . . . . . . . . . 7 5.1. Enforce Address Syntax . . . . . . . . . . . . . . . . 7 5.2. Log Errors . . . . . . . . . . . . . . . . . . . . . . . 7 6. Optional Actions . . . . . . . . . . . . . . . . . . . . . 7 6.1. Enforce Submission Rights . . . . . . . . . . . . . . . 7 6.2. Require Authentication . . . . . . . . . . . . . . . . 8 6.3. Enforce Permissions . . . . . . . . . . . . . . . . . . 8 6.4. Check Message Data . . . . . . . . . . . . . . . . . . 8 7. Interaction with SMTP Extensions . . . . . . . . . . . . . . 8 8. Message Modifications . . . . . . . . . . . . . . . . . . . 9 8.1. Add 'Sender' . . . . . . . . . . . . . . . . . . . . . . 9 8.2. Add 'Date' . . . . . . . . . . . . . . . . . . . . . . 10 8.3. Add 'Message-ID' . . . . . . . . . . . . . . . . . . . . 10 Gellens & Klensin Standards Track