Article ID: 946641
Article Last Modified on 12/31/2007
APPLIES TO
- Microsoft Exchange Server 2007 Service Pack 1, when used with:
- Microsoft Exchange Server 2007 Standard Edition
- Microsoft Exchange Server 2007 Enterprise Edition
INTRODUCTION
In Microsoft Exchange Server 2007, the 7-bit transfer encoding method for MIME format is fixed to Quoted-Printable (QP) encoding. After you apply Exchange 2007 Service Pack 1 (SP1) to the Exchange 2007-based server that is running the Hub Transport role, you can change the transfer encoding method by editing the EdgeTransport.exe.config file. This article describes how to change the method for transfer encoding.
MORE INFORMATION
To change the method for transfer encoding, follow these steps:
- On the Exchange 2007-based server that is running the Hub Transport role, open Windows Explorer.
- Locate the following folder:
<drive>:\Program Files\Microsoft\Exchange Server\Bin - Make a backup copy of the EdgeTransport.exe.config file by saving a version of it that is named EdgeTransport.exe.config.old.
Open the EdgeTransport.exe.config file in Notepad, and then locate the following line between the <appsettings> segment and the </appsettings> segment.
<add key="ByteEncoderTypeFor7BitCharsets" value="1" />
Note If this line does not exist between the <appsettings> segment and the </appsettings> segment, insert this line.
- Change the value that is described in this line of code to an appropriate value from the following table. This change will control the MIME encoding behavior.
Note The value should be written as a number. It should not be spelled out.Value Behavior 0 Always use default 7-bit transfer encoding for HTML and for plain text.
Note This is the equivalent of setting Exchange to its pre-hotfix default behavior.1 Always use QP encoding for HTML and for plain text. 2 Always use Base64 encoding for HTML and for plain text. 5 Use QP encoding for HTML and for plain text unless line wrapping is enabled in plain text. If line wrapping is enabled, use 7-bit encoding for plain text. 6 Use Base64 encoding for HTML and for plain text, unless line wrapping is enabled in plain text. If line wrapping is enabled in plain text, use Base64 encoding for HTML and 7-bit encoding for plain text. 13 Always use QP encoding for HTML. Always use 7-bit encoding for plain text. 14 Always use Base64 encoding for HTML. Always use 7-bit encoding for plain text. - Save the changes, and then exit Notepad.
- Restart the Exchange Transport service.
REFERENCES
For more information about Exchange 2007 SP1, visit the following Microsoft Download Center Web site:
For more information about problems with formatting in an e-mail message, click the following article number to view the article in the Microsoft Knowledge Base:
835992 An e-mail message may not be formatted correctly when a recipient sends the e-mail message from an Exchange Server 2003 computer to another Exchange recipient
Keywords: kbhowto kbexpertiseinter kbinfo KB946641
