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Q184995: XCON: Lotus SoftSwitch X.4 Rejects MAPI Attachments

Article: Q184995
Product(s): Microsoft Exchange
Version(s): WinNT:5.0,5.5
Operating System(s): 
Keyword(s): 
Last Modified: 11-APR-1999

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The information in this article applies to:

- Microsoft Exchange Server, versions 5.0, 5.5 
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SYMPTOMS
========

When you send a message with an attachment through an X.400 Connector running
1988 mode to a Lotus Soft-Switch (EMS) X.400 system, the message may be rejected
By Lotus Soft-Switch.

CAUSE
=====

The Lotus Soft-Switch system rejects the message because the gateway expects a
different object identifier (OID) from Microsoft Exchange Server for the MAPI
attachment. The expected OID is as follows:

  iso(1) ansi(2) usa(840) microsoft(113556) mapi(3) tags (10) mapi-
  attachment (2)
  (ie 2a 86 48 86 f7 13 03 0a 02)
  (1.2.840.1356.310.3)

The OID supplied by Exchange is as follows:

  (1.2.840.1.1356.310.3)
  iso(1) ansi(2) usa(840) organization(1) microsoft(113556) mapi(3) tags
  (10) mapi-attachment (2)
  (ie 2a 86 48 01 86 f7 13 03 0a 02) P2_registered_identifier

The Soft-Switch system does not expect the organization (1) value, therefore it
fails with the MAPI attachment.

WORKAROUND
==========

To work around this problem, use 1984-connection mode rather than 1988 mode. Or
you can contact Lotus for a possible fix for the gateway.

MORE INFORMATION
================

Microsoft Exchange Server sends the correct OID value. The organization (1) must
be included so it is valid in the ANSI-defined OID hierarchy.

STATUS
======

The third-party products discussed here are manufactured by vendors independent
of Microsoft; we make no warranty, implied or otherwise, regarding these
products' performance or reliability.

Additional query words: SOFTSWITCH LOTUS x.400 OID MAPI

======================================================================
Keywords          :  
Technology        : kbExchangeSearch kbExchange500 kbExchange550 kbZNotKeyword2
Version           : WinNT:5.0,5.5
Issue type        : kbprb

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