Consider the following scenario in an Exchange Server 2007 Service Pack 1 (SP1) environment:
You enable a transport rule to add disclaimers.
The disclaimer test includes non-ASCII characters such as "Ğ" and "Ş."
Message are in HTML format and are encoded in Unicode.
In this scenario, HTML e-mail messages that have character encoding in the charset META tag that differs from the character encoding in the MIME part appear garbled when they are processed through a disclaimer rule.
Re-encoding occurs when you append the disclaimer. Exchange Server 2007 SP1 incorrectly encodes the META tag, and this results in the garbled message.
To resolve this problem, install Update Rollup 9 for Exchange 2007 Service Pack 1. For more information about Update Rollup 9 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic: