Symptoms

Consider the following scenario:

  • You create a disclaimer transport rule in an environment that has Update Rollup 1 for Microsoft Exchange Server 2010 Service Pack 3 (SP3) installed.

  • The transport rule is applied to all messages, and appends some text to email messages.

  • The disclaimer transport rule tries to apply the disclaimer to an HTML-formatted message.

In this scenario, the HTML-formatted message cannot be delivered to recipients, and the EdgeTransport.exe process crashes on the Hub Transport server. Additionally, the following event is logged in the Application log: 

Cause

This issue occurs because the message body and the disclaimer text use the same character encoding. This causes an issue in which a null charset parameter is called in the character encoding.

Resolution

To resolve this issue, install the following update rollup:

2866475 Description of Update Rollup 2 for Exchange Server 2010 SP3

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about a similar issue, click the following article number to view the article in the Microsoft Knowledge Base:

2870028 EdgeTransport.exe crashes when an email message without a sender address is sent to an Exchange Server 2010 Hub Transport server
For more information about the character encoding, go to the following Microsoft website:

White Paper: Message FormattingFor more information about how to configure a disclaimer, go to the following Microsoft website:

How to configure a disclaimer

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