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

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Article ID: 925784 - View products that this article applies to.
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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]

RESOLUTION

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

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 Exchange

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File nameFile versionFile sizeDateTimePlatform
Mimenavigator.dll9.0.1055.26186,88022-Sep-200613:48x86

Antigen 9.0 for SMTP Gateways

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File nameFile versionFile sizeDateTimePlatform
Mimenavigator.dll9.0.1055.26186,88022-Sep-200612:48x86

STATUS

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

Properties

Article ID: 925784 - Last Review: March 20, 2007 - Revision: 1.1
APPLIES TO
  • Microsoft Antigen for Exchange
  • Microsoft Antigen for SMTP Gateways
Keywords: 
kbautohotfix kbexpertiseinter kbqfe kbhotfixserver KB925784

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