KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q128468: PROFS: Cannot Receive Attachments Not Sent As Documents

Article: Q128468
Product(s): Microsoft Mail For PC Networks
Version(s): 3.4a
Operating System(s): 
Keyword(s): 
Last Modified: 26-APR-2002

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Mail Host Access for IBM PROFS and OfficeVision, version 3.4a 
-------------------------------------------------------------------------------

SYMPTOMS
========

IBMMAIL and other E-Mail systems connected to MS-MAIL via PROFS gateway cannot
receive attachments if they are not sent as documents. The attachment is
rejected due to invalid origin node name and userid. The node name displayed is
the MS-RSCS node name and the userid is the MS-GATE userid.

CAUSE
=====

When the attachment from MS-MAIL is not sent to the host as a document, it is
sent in 'netdata' format. The header of the file contains the origin node name
taken from the SYSTEM NETID file of MS-GATE, and the origin id of the gateway.

The receiving end on IBMMAIL verifies (as an additional security measure,
probably) that the origin node name and userid in the NETDATA file correspond to
the origin node name and userid taken from NJE (Network Job Entry) Header.

The NETDATA header is created by the CMS SENDFILE program which the gateway is
using to send attachments.

RESOLUTION
==========

The SENDFILE program is using IDENTIFY MODULE to obtain the origin node name and
the userid. IDENTIFY MODULE is part of the CMS Nucleus. The SENDFILE program is
used by the host code in only one place: PWAATTS XEDIT macro.

2 programs were created:

PWAIDENT TEXT - this is object code of PWAIDENT ASSEMBLE program. This program
reads the first line of the PWAIDENT DATA file and stacks the content in the
program stack.

PWASENDF EXEC - this exec takes input parameters in the same format as SENDFILE
EXEC and performs the following functions:

1. It uses global variables, LANNODE and LANID, and the IDENTIFY command to
  create a one line file PWAIDENT DATA A. The file has the same format as the
  output from the IDENTIFY command, but the origin node name and userid are
  taken from the LANNODE and LANID global variables.

2. Generates IDENTIFY MODULE using PWAIDENT TEXT and adds it to Nucleus
  extension.

3. Calls SENDFILE to send the file. The SENDFILE CMS command is using "our"
  IDENTIFY command from the nucleus extension.

4. Drops IDENTIFY MODULE from nucleus extension.

To implement the change we should change line 193 in PWAATTS XEDIT to call
PWASENDF EXEC instead of SENDFILE EXEC.

IMPACT
------

Two new programs are added to the Profs Host Access program. There is no
noticeable performance degradation.


Additional query words:

======================================================================
Keywords          :  
Technology        : kbMailSearch kbZNotKeyword3 kbMailGateIBMPROFS340a
Version           : :3.4a

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.