Microsoft KB Archive/312634

= Exchange Monitoring notification messages may be filtered out by SMTP filtering when the &quot;Blank Sender Filtering&quot; option is turned on =

Article ID: 312634

Article Last Modified on 2/22/2007

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APPLIES TO

 Microsoft Exchange 2000 Server Standard Edition, when used with:  Microsoft Windows 2000 Service Pack 1

 Microsoft Windows 2000 Service Pack 2 

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This article was previously published under Q312634



SYMPTOMS
Exchange Monitoring notification messages may be filtered out by SMTP filtering when the Blank Sender Filtering option is turned on.



CAUSE
The Exchange Monitoring message has an invalid RFC 822 'FROM' address and is seen by the filtering as being blank.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to obtain the latest Windows 2000 service pack

The English version of this fix should have the following file attributes or later:

<pre class="fixed_text">  Date       Time   Version      Size     File name 12-Feb-02 14:54  1.50.1657.3  159,820  Smtpcons.dll

<div class="status_section">

STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Windows 2000 Service Pack 3.

<div class="moreinformation_section">

MORE INFORMATION
Exchange Monitoring uses Windows Management Instrumentation (WMI) to send notification messages. WMI adds 'via WMI auto-mailer' to the 'FROM' address. The final 'FROM' address looks similar to the following address:

WinMGMT@server name via WMI auto-mailer.

Because this is not a valid RFC 822 address, it is ignored.

Additional query words: kbMgmtAdmin administrator turf turfed

Keywords: kbhotfixserver kbqfe kbbug kbenv kbfix kbsysadmin kbwin2000sp3fix KB312634

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