Q159162: XCON: MSMail Read-Receipts Missing Data Across Organizations

Article: Q159162
Product(s): Microsoft Exchange
Version(s): WINDOWS:3.0,3.2,3.2a,3.5; winnt:4.0,5.0,5.5
Operating System(s): 
Keyword(s): exc4 exc5 exc55
Last Modified: 19-DEC-1999

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The information in this article applies to:

- Microsoft Exchange Server, versions 4.0, 5.0, 5.5 
- Microsoft Mail for PC Networks, versions 3.0, 3.2, 3.2a, 3.5 
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SYMPTOMS
========

When you send a mail message with a read-receipt request from a Microsoft Mail
3.x client to a Microsoft Exchange Server user in a different organization, the
read-receipt is returned with missing To and Subject fields.

A mail message sent with a read-receipt request from Microsoft Exchange Client to
a Microsoft Mail user across a different organization results in the following
returned receipt:

  Your message

     To:   Unknown
     Subject:Unknown
     Sent: Unknown

  was read on 11/8/96 8:36:00 AM

CAUSE
=====

The Microsoft Mail client generates and responds to read receipts using MAPI
commands. These commands are encapsulated by Exchange Server in the MDBEF format
when they arrive in Exchange Server. However, when going to another Exchange
Server organization, these commands are converted to a native X.400 format and
the MDBEF properties are stripped out.

The Microsoft Mail client cannot compensate for this X.400 limitation because it
does not know how to properly encode the message using standard X.400 flags for
the handling of read receipts.

RESOLUTION
==========

To work around this problem:

- Have all the computers running Exchange Server in the same organization.

This will ensure that the MDBEF is preserved and the read receipt maintains its
proper format.

Additional query words: rr msmail p2 ia5

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Keywords          : exc4 exc5 exc55 
Technology        : kbExchangeSearch kbExchange500 kbExchange550 kbExchange400 kbZNotKeyword2 kbMailSearch kbZNotKeyword3 kbMailPCN320 kbMailPCN320a kbMailPCN300 kbMailPCN350
Version           : WINDOWS:3.0,3.2,3.2a,3.5; winnt:4.0,5.0,5.5
Issue type        : kbprb

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