Article ID: 975918 - View products that this article applies to.
When an Internet Message Access Protocol version 4 (IMAP4) client sends a FETCH (bodystructure) request for a specific message to a server that is running Microsoft Exchange Server 2007, the Exchange 2007 server returns an incorrect response that the IMAP4 client interprets as a corrupted message.
This issue occurs when the Exchange 2007 server responds to a FETCH (bodystructure) request. The response message does not contain a Content-Transfer-Encoding field in the MIME header of each body part of the message. When this field is missing, the Exchange 2007 server sets the body-fld-enc parameter of the Content-Transfer-Encoding field to the NIL value. However, according to RFC 3501, this parameter should be set to 7BIT value. According to RFC 3501, the body-fld-enc parameter may only contain the following string values
For more information about the Content-Transfer-Encoding field and the body-fld-enc parameter, visit the Internet Engineering Task Force (IETF) to review the following RFCs:
To resolve this issue, download and install Update Rollup 2 for Exchange Server 2007 Service Pack 2.
PrerequisitesThe following list contains prerequisites for the update rollup:
(http://support.microsoft.com/kb/972076/ )Description of Update Rollup 2 for Microsoft Exchange Server 2007 Service Pack 2
Article ID: 975918 - Last Review: January 22, 2010 - Revision: 1.0