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Trend Micro Incorporated                                      January 17th, 2020
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  Trend Micro(TM) InterScan Messaging Security Virtual Appliance 9.1 - Patch 3
                           English - Linux - 64 Bits
                           Critical Patch Build 1993
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


  Contents
  ==============================================================================
    1.  Critical Patch Release Information
        1.1 Resolved Known Issues
        1.2 Enhancements
    2.  Documentation Set
    3.  System Requirements
    4.  Installation/Uninstallation
        4.1 Installing
        4.2 Uninstalling
    5.  Post-installation Configuration
    6.  Known Issues
    7.  Release History
        7.1 Prior Hotfixes
    8.  Contact Information
    9.  About Trend Micro
    10. License Agreement
  ==============================================================================


  1. Critical Patch Release Information
  ==============================================================================

    1.1 Resolved Known Issues
    ============================================================================
    This Critical Patch resolves the following issue(s):

    Issue:    All outbound encrypted email messages mistakenly triggered                      
              scanning exceptions and were quarantined.              
              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Solution: This critical patch upgraded the CryptoSDK module and fixed this              
              issue.              


    1.2 Enhancements
    ============================================================================
    There are no enhancements for this Critical Patch release.


  2. Documentation Set
  ==============================================================================

      To download or view electronic versions of the documentation set for this      
      product, go to http://docs.trendmicro.com      

    - Online Help: The Online Help contains an overview of features and key      
      concepts, and information on configuring and maintaining the product.      

      To access the Online Help, go to http://docs.trendmicro.com

    - Installation Guide (IG): The Installation Guide contains information on      
      requirements and procedures for installing and deploying the product.      

    - Administrator's Guide (AG): The Administrator's Guide contains an overview      
      of features and key concepts, and information on configuring and      
      maintaining the product.      

    - Getting Started Guide (GSG): The Getting Started Guide contains product      
      overview, installation planning, installation and configuration      
      instructions, and basic information intended to get the product 'up and      
      running'.      

    - Support Portal: The Support Portal contains information on troubleshooting      
      and resolving known issues.      

    - To access the Support Portal, go to http://esupport.trendmicro.com



  3. System Requirements
  ==============================================================================

      1. Trend Micro InterScan Messaging Security Virtual Appliance 9.1 Patch 3
         Build 1960 - English - Linux - x64


  4. Installation/Uninstallation
  ==============================================================================
    This section explains key steps for installing the Critical Patch.

    4.1 Installing
    ============================================================================

    To install:    
    1. Log on to the IMSVA management console.    
    2. Go to "Administration > Updates > System & Applications".    
    3. Select and upload the hotfix package (tar.gz).    
    4. After a few minutes, check the latest uploaded package information to    
       make sure the management console has successfully uploaded the hotfix    
       package to IMSVA.    
    5. If you have set up a group of IMSVA devices, select the parent device and    
       click "Update". Wait for the parent device to finish updating, and then    
       update all the child devices.    
    6. Wait for a few minutes and then log on to the IMSVA management console.    
    7. Go to "Administration > Updates > System & Applications".    
    8. Verify that the "OS version"/"Application version" values for all items    
       in the "Current status" section match the hotfix version.    

    4.2 Uninstalling
    ============================================================================

    To roll back to the previous build:    
    1. Log on to the IMSVA management console.    
    2. Go to "Administration > Updates > System & Applications".    
    3. Under "Host Name", click the name of the device you want to view. A    
       summary screen appears showing the updates and related log information.    
    4. To remove an update, click "Rollback".    

  5. Post-installation Configuration
  ==============================================================================

    No post-installation steps are required.    
    NOTE: Trend Micro recommends that you update your scan engine and virus    
    pattern files immediately after installing the product.    


  6. Known Issues
  ==============================================================================

    There are no known issues for this Critical Patch release.


  7. Release History
  ==============================================================================
    For more information about updates to this product, go to:    
    http://www.trendmicro.com/download    

    7.1 Prior Hotfixes
    ============================================================================
    There are no prior hotfixes.



  8. Contact Information
  ==============================================================================

    A license to Trend Micro software usually includes the right to product    
    updates, pattern file updates, and basic technical support for one (1) year    
    from the date of purchase only. After the first year, you must renew    
    Maintenance on an annual basis at Trend Micro's then-current Maintenance    
    fees.    

    Contact Trend Micro via fax, phone, and email, or visit our website to    
    download evaluation copies of Trend Micro products.    

    http://www.trendmicro.com/us/about-us/contact/index.html

    NOTE: This information is subject to change without notice.


  9. About Trend Micro
  ==============================================================================

    Smart, simple, security that fits

    As a global leader in IT security, Trend Micro develops innovative security    
    solutions that make the world safe for businesses and consumers to exchange    
    digital information.    

    Copyright 2020, Trend Micro Incorporated. All rights reserved.

    Trend Micro, InterScan Messaging Security Virtual Appliance, and the t-ball    
    logo are trademarks of Trend Micro Incorporated and are registered in some    
    jurisdictions. All other marks are the trademarks or registered trademarks    
    of their respective companies.    


  10. License Agreement
  ==============================================================================
    View information about your license agreement with Trend Micro at:

    http://www.trendmicro.com/us/about-us/legal-policies/license-agreements/

    Third-party licensing agreements can be viewed:
    - By selecting the "About" option in the application user interface
    - By referring to the "Legal" page of the Administrator's Guide