Microsoft KB Archive/925784

= Antigen 9.0 for Exchange may block legitimate e-mail messages because they may include some redundant Content-Transfer-Encoding items =

Article ID: 925784

Article Last Modified on 3/20/2007

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APPLIES TO


 * Microsoft Antigen for Exchange
 * Microsoft Antigen for SMTP Gateways

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SYMPTOMS
Microsoft Antigen 9.0 for Exchange may block legitimate e-mail messages because of the IllegalMIMEHeader function. When this problem occurs, the messages may include some redundant Content-Transfer-Encoding items. For example, Antigen 9.0 for Exchange will block the following message:

Mime-Version: 1.0

Content-Type: text/plain; charset=us-ascii

Content-Transfer-Encoding: 7bit

Content-Transfer-Encoding: 7bit

Return-Path: a@b.com

X-OriginalArrivalTime: 01 Sep 2006 12:35:59.0900 (UTC) FILETIME=[2DE5F5C0:01C6CDC3]



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
There are no prerequisites for installing this hotfix.

Restart requirement
The hotfix will automatically stop and restart any necessary services. If a service cannot be stopped and files are open, you may have to restart the computer to finish the installation of the hotfix.

Hotfix replacement information
This hotfix does not replace a previously released hotfix.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Antigen 9.0 for SMTP Gateways


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbexpertiseinter kbqfe kbhotfixserver KB925784

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