DOCUMENT:Q253348  10-NOV-2000  [exchange]
TITLE   :XCON: Exchange Server Cannot Reply All to Notes Recipients
PRODUCT :Microsoft Exchange
PROD/VER:winnt:5.5
OPER/SYS:
KEYWORDS:exc55 kbExchange550preSP4fix kbExchange550sp4Fix

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The information in this article applies to:

 - Microsoft Exchange Server, version 5.5 
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SYMPTOMS
========

If you reply all to a Lotus Notes user and either of the following conditions
are true,

 - The Lotus Notes user has only a last name specified and does not have a Notes
   proxy address specified in Exchange Server.

 - The Notes users have not performed a directory synchronization to Exchange
   Server.

the address may not resolve and you may not be able to send the e-mail.

CAUSE
=====

This issue can occur because the Microsoft Exchange Connector for Lotus Notes
treats messages that contain Notes addresses that cannot be resolved as Simple
Mail Transfer Protocol (SMTP) messages. If the Notes addresses do not comply
with SMTP standards, you cannot send messages to those addresses.

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Exchange Server 5.5.
For additional information, please see the following article in the Microsoft
Knowledge Base:

   Q191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack


STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.5. This problem was first corrected in Exchange Server 5.5 Service
Pack 4.

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

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

Additional query words:

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Keywords          : exc55 kbExchange550preSP4fix kbExchange550sp4Fix 
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2
Version           : winnt:5.5
Issue type        : kbbug
Solution Type     : kbfix

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