Article ID: 958638 - View products that this article applies to.
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Some mail clients or other third-party SMTP-based clients notate message priority by using the X-Priority header. When a mail client or a third-party SMTP-based client submits an X-Priority header that contains additional comments, Microsoft Exchange Server 2007 cannot parse the X-Priority header. Instead, Exchange Server 2007 handles the message as if the message has a normal priority.
To resolve this problem, install Update Rollup 7 for Exchange 2007 Service Pack 1. For more information about Update Rollup 7 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic:
Description of Update Rollup 7 for Exchange Server 2007 Service Pack 1For more information about how to install the latest Exchange service pack or update rollup, see the following Exchange Help topic:
How to Obtain the Latest Service Pack or Update Rollup for Exchange 2007
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For example, this problem occurs when a message includes one of the following texts in the X-Priority header:
Article ID: 958638 - Last Review: January 15, 2015 - Revision: 1.1