You create a reply using a specific template rule in Microsoft Office Outlook in a Microsoft Exchange Server 2007 environment. The template specifies the body of the reply email message, but it does not specify the subject of the reply email message. In this situation, the subject of the original email message is used for the reply email message. However, if the template and the original email message have different character sets, the subject of the reply email message is displayed as a series of question mark (?) characters.
To resolve this issue, install the following update rollup:
2509911 Description of Update Rollup 4 for Exchange Server 2007 Service Pack 3
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about how to create a "reply using a specific template" rule in Outlook: