Microsoft KB Archive/195215

= XFOR: 8-Bit Data Is Put in the Message Body When Internet Mail Service Is Configured for UUENCODE and US-ASCII Charset =

Article ID: 195215

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q195215



SYMPTOMS
Outbound SMTP messages from the Internet Mail Service may contain 8-bit data in the message body, even though the Internet Mail Service is configured to use UUENCODE and the US-ASCII character set.



CAUSE
The 8-bit data should be mapped to the 7-bit equivalents. Outlook 98 introduces a property that incorrectly signals the Internet Mail Service to use the ISO8859-1 character set, instead of US-ASCII.



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

191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

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

File Name     Version -  Store.exe    5.5.2438.0 Mdbmsg.dll  5.5.2438.0 Gapi32.dll  5.5.2438.0

Store.exe   5.0.1461.75 Mdbmsg.dll  5.0.1461.75



STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server versions 5.0 and 5.5.



MORE INFORMATION
The Internet Mail Service will encode outbound mail according to the following criterion:


 * If the Internet Mail Service is configured as MIME, the Internet Mail Service encodes the 8-bit data in either base64 or quoted printable.
 * If the Internet Mail Service is configured to send UUENCODE and the outbound character set specified is US-ASCII, then the Internet Mail Service will take the 8-bit data and match it to the closest 7-bit equivalent.
 * If the Internet Mail Service is configured to send UUENCODE with the outbound character set specified as ISO-8859-1, then the 8-bit data should be left in the body of the message.

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe KB195215

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