XADM: Inbound Unicode 2.0 Messages Not Decoded Properly (178118)

SYMPTOMS

When you attempt to receive a message that contains Unicode 2.0 characters, the Internet Mail Service may generate an event in the event log that indicates that it was unable to decode the message. This problem is known to occur when you attempt to receive messages from the Netscape e-mail client, but it also occurs when you attempt to receive messages from any e- mail client that uses Unicode 2.0 encoding.

CAUSE

When you install Microsoft Exchange Server, the Multipurpose Internet Mail Extensions (MIME) database entries needed to properly decode Unicode 2.0 messages are not added to the database automatically.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.0.

This problem has been corrected in the latest U.S. Service Pack for Microsoft Exchange Server version 5.0. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

MORE INFORMATION

The fix causes the installation program to modify the following registry keys and values:

   Key: HKEY_CLASSES_ROOT\MIME\Database\Codepage\65000
   Value name: BodyCharSet
   Value data: utf-7

   Key: HKEY_CLASSES_ROOT\MIME\Database\Codepage\65001
   Value name: BodyCharSet
   Value data: utf-8

After you obtain this fix or a Service Pack that contains this fix, you should reinstall Microsoft Exchange Server. If you do not want to reinstall Microsoft Exchange Server, you can modify the registry as described above manually, but this is not recommended.