In a Microsoft Exchange Server 2007 environment, an e-mail message is in disorder and is unreadable. However, the same e-mail message is readable if it is received by a user in a Microsoft Exchange Server 2003 environment.

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This problem occurs because the boundary conditions of the e-mail message are set to have more than 70 characters. For example, the message header contains the following text: This problem may also occur if space characters and carriage return/line feed (CR/LF) characters increase the boundary conditions to more than 70 characters. For example, the message header contains the following text:In Exchange Server 2007, the boundary conditions are always treated as invalid. Therefore, the "multipart/" element is treated as invalid and is then converted to a "text/plain" element.

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To resolve this problem in Exchange Server 2007 Service Pack 1, install Update Rollup 1 for Exchange Server 2007 Service Pack 1. For more information, click the following article number to view the article in the Microsoft Knowledge Base: To resolve this problem in the release version of Exchange Server 2007, install Update Rollup 6 for Exchange Server 2007.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base: For more information about RFC 2046, visit the following Web site:

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