895263 The expected e-mail messages are not found when you use Message Tracking Center in Exchange Server 2003

Source: https://support.microsoft.com/default.aspx?scid=kb;en-us;895263

Consider the following scenario. You search for e-mail messages by using Message Tracking Center in Microsoft Exchange Server 2003. On the General tab of the server properties in Exchange System Manager, both the Enable subject logging and display and the Enable Message Tracking check boxes are selected. In this scenario, the expected e-mail messages are not found. Therefore, many log files appear to be missing.

CAUSE
This problem occurs because of invalid content in the Subject box of an e-mail message. The invalid content is similar to the following:

=?GB2312?B??=

Mime decoding does not correctly handle this kind of content.

RESOLUTION
A supported hotfix is now available from Microsoft
Prerequisites
No prerequisites are required.
Restart requirement
You do not have to restart the computer after you apply the hotfix.

   Date Time Version Size File name
-------------------------------------------------------
30-Jun-2005 02:33 6.5.7233.32 202,240 Exmime.dll

WORKAROUND
To work around this problem, click to clear the Enable subject logging and display check box on the General tab of the server properties in Exchange System Manager.