Microsoft KB Archive/886694

= E-mail messages may not be delivered when you use the &quot;Filter messages with blank sender&quot; option in Exchange Server 2003 =

Article ID: 886694

Article Last Modified on 3/27/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems

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SYMPTOMS
When you use the Filter messages with blank sender option in Microsoft Exchange Server 2003, messages may be incorrectly filtered. When this problem occurs, some e-mail messages that do have a sender may not be delivered.



CAUSE
This problem occurs if one of the following conditions is true:
 * The From field of the e-mail message contains a comment.
 * The From field of the e-mail message contains a space character from a single-byte character set. This space character is between characters from a double-byte character set.



Service pack information
To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

889100 How to obtain the latest service pack for Windows Server 2003

Prerequisites
No prerequisites are required.

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Windows Server 2003, 32-bit editions
  Date         Time   Version            Size  File name 03-Nov-2004 21:53  6.0.3790.229    461,824  Smtpsvc.dll

Windows Server 2003, Enterprise Edition for Itanium-based Systems
  Date         Time   Version            Size  File name 03-Nov-2004 21:54  6.0.3790.229  1,186,304  Smtpsvc.dll



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 Server 2003 Service Pack 2.



MORE INFORMATION
In a single-byte character set, each character is represented by one byte. In a double-byte character set, a character can use more than one byte. A double-byte character set includes characters that use one byte and characters that use two bytes. Languages such as Chinese, Japanese, and Korean use double-byte character sets.

For additional information about how to resolve this problem if you are running Microsoft Exchange 2000 Server, click the following article number to view the article in the Microsoft Knowledge Base:

842588 Messages may not be delivered when you use the Filter messages with blank sender option in Exchange 2000 Server

For additional information about the terminology that is used in this article, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: XADM

Keywords: kbwinserv2003sp2fix kbqfe kbhotfixserver kbbug kbfix kbwinserv2003presp1fix KB886694

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