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+
+                                                                        
+Network Working Group                                         S. Sluizer
+Request for Comments: 786                                      J. Postel
+                                                                     ISI
+                                                               July 1981
+
+                        MAIL TRANSFER PROTOCOL:
+                    ISI TOPS20 MTP-NIMAIL INTERFACE
+
+
+INTRODUCTION
+
+   This document defines the ISI TOPS20s interface between the Mail
+   Transfer Protocol (MTP) and the Network Independent Mail Protocol
+   (NIMAIL) in terms of the files which implement it.  The internal
+   structure and name of each file is described below.
+
+   For a complete understanding of the MTP protocol as well as the terms
+   used within this document, see RFC 780 "Mail Transfer Protocol", RFC
+   784 "ISI TOPS20 Implementation", and RFC 785 "ISI TOPS20 File
+   Defintitions".  The NIMAIL is documented in IEN 169, "A Simple
+   NIFTP-Based Mail System".
+
+DESCRIPTION
+
+   1. NIMAIL to MTP
+
+      NIMAIL will present mail for processing by MTP using the files
+      specified in RFC 785.
+
+   2. MTP to NIMAIL
+
+      MTP will present mail for processing by NIMAIL in files of the
+      following form:
+
+         address <CR><LF>
+         address <CR><LF>
+         address <CR><LF>
+         <CR><LF>
+         Via: USC-ISIE; date-time <CR><LF>
+         header
+          .
+          .
+          .
+         <CR><LF>
+         body
+          .
+          .
+          .
+
+         Where each address is of the form:
+
+
+
+
+Sluizer & Postel                                                Page [1]
+
+
+                                                                        
+July 1981                                                        RFC 786
+ISI TOPS20 MTP-NIMAIL Interface                                         
+
+
+
+            user%host%host%host@host
+
+         And each address in the same file has the same "@host" part.
+
+         The date-time will be in the default TOPS20 ODTIM format
+         "dd-mmm-yy hh:mm:ss" (24 hour time).
+
+      The files will named "arbitrary.NIMAIL.-1", where "arbitrary" will
+      be somesort of date-time encoding for human uses.  The NIMAIL will
+      not care in the least what the "arbitrary" part is.  These files
+      will be placed into the NIMAIL directory on ISIE.
+
+DISCUSSION
+
+   The NIMAIL and MTP will each perform a transformation of the address
+   information to create the appropriate input for the other system.
+
+   NIMAIL to MTP
+
+      The mail that arrives at NIMAIL with the information
+
+         joe%hostx%hosty%hostz@isie
+
+      will be presented to MTP with the information
+
+         FROM: <NIMAIL@ISIE>
+         TO: <@hostz,@hosty,joe@hostx>
+
+   MTP to NIMAIL
+
+      The mail that arrives at MTP with the information
+
+         FROM: <sam@SRI-NIC>
+         TO: <@ISIE,@hostz,@hosty,joe@hostx>
+
+      will be presented to NIMAIL with the information
+
+         joe%hostx%hosty@hostz
+
+         Via: ISIE
+
+
+
+
+
+
+
+
+
+Page [2]                                                Sluizer & Postel
+