Article ID: 954058 - View products that this article applies to.
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In a Microsoft Exchange Server 2007 environment, the 7-bit transfer encoding method for the MIME format is set to use Quoted-Printable (QP) encoding. This behavior affects the usage in some scenarios. For example, you can use a third-party Internet Message Access Protocol (IMAP) gateway to retrieve messages from the Exchange server and to serve mobile users. However, the IMAP gateway does not work with 7-bit transfer encoding. An IMAP gateway works only with Base64 encoding.
Update informationTo resolve this problem, install Update Rollup 4 for Exchange Server 2007 Service Pack 1 (SP1) on the Exchange server. For more information about Update Rollup 4 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic:
Description of Update Rollup 4 for Exchange Server 2007 Service Pack 1For more information about how to obtain the latest Exchange service pack or update rollup, see the following Exchange Help topic:
How to Obtain the Latest Service Pack or Update Rollup for Exchange 2007After you apply Update Rollup 4 for Exchange 2007 Service Pack 1 (SP1), you can change the transfer encoding method by editing the Microsoft.Exchange.Imap4.exe.config file or the Microsoft.Exchange.Pop3.exe.config file. To do this, follow these steps:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about the Content-Transfer-Encoding: header field, visit the following Microsoft Web site:
Article ID: 954058 - Last Review: January 16, 2015 - Revision: 2.0