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  Trend Micro, Inc.               		       February 18, 2010
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                Trend Micro(TM) Encryption for Email Gateway
                             Version 5.5 
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   
   Notes: This readme file was current as of the date at the top of the 
          page. However, all customers are advised to check Trend Micro's 
          Web site for documentation updates at:

   http://www.trendmicro.com/download/

   Register online with Trend Micro within 30 days of installation to
   continue downloading new pattern files and product updates from the 
   Trend Micro Web site. Register during installation or online at:
 
   http://olr.trendmicro.com 
 
     
   Contents
   =====================================================================
    1.  About Encryption for Email Gateway
        1.1 Overview of This Release
    2.  What's New?
        2.1 New Message Format Support
        2.2 Black List Domain Support
        2.3 Performance Improvement        	
    3.  Documentation Set
    4.  System Requirements
    5.  Installation
    6.  Post-Installation Configuration
    7.  Known Issues
    8.  Release History
    9.  Contact Information
    10. About Trend Micro
    11. Third-Party Licensing Agreements
   =====================================================================


   1. About Encryption for Email Gateway
   =====================================================================
  
   Encryption for Email Gateway is a Linux-based software solution 
   providing the ability to perform the encryption and decryption of 
   email at the corporate gateway, regardless of the email client, and 
   the platform from which it originated. The encryption and decryption 
   of email on the TMEEG client is controlled by a Policy Manager that 
   enables an administrator to configure policies based on various 
   parameters, such as sender and recipient email addresses, keywords, or 
   PCI compliance. Encryption for Email Gateway presents itself as an 
   SMTP interface and delivers email out over an SMTP to configured 
   outbound MTAs. This enables easy integration with other email 
   server-based products, be them content scanners, mail servers, or 
   archiving solutions.

   Encryption for Email Gateway is built on patent-pending technology 
   and highly sophisticated elliptic curve encryption algorithms. This 
   ensures that encrypted email can only be read by the intended email 
   recipients.  
   
   Although very sophisticated, Encryption for Email Gateway solves all 
   the historical problems associated with traditional encryption 
   products such as working offline and easy key management. It is 
   equally useful for one-to-one, one-to-many, and many-to-many 
   communications. 
   

   1.1 Overview of This Release
   =====================================================================
   This is the first major release of Encryption for Email Gateway.
   

   2. What's New?  
   =====================================================================
    
    2.1 Message Format Support
        Encryption For Email Gateway supports a message encryption 
        format where the message body and all attachments are encrypted 
        together as one file. 

    2.2 Black List Domain Support
        Encryption for Email Gateway can prevent the encryption of 
        dedicated email addresses on certain domains. We will add a 
        customer requested black list domain to our Email Encryption 
        Server. Encryption for Email Gateway will query from this 
        server before encryption, and if the email for the encryption 
        address is on the black list for the dedicated partner, the mail 
        will not be encrypted or blocked. 

    2.3 Performance Improvement
        Previously, encryption for Email Gateway can rewrite the received 
        email to remove the “\r\n” elements on each line, but that 
        process slowed down the system when handling larger emails. In 
        version 5.5, we fixed this issue and the performance improved.
	For Encryption for Email Gateway 5.5, it has about 100% performance
        enhancement comparing to Encryption for Email Gateway 5.0.    


   3. Documentation Set
   =====================================================================
   In addition to this readme file, the documentation set for this 
   product includes the following:

   * Trend Micro Encryption for Email Gateway 5.5 Quick Installation Guide. 

   * Trend Micro Encryption for Email Gateway 5.5 Administrator's Guide.

   
   4. Minimum System Requirements Gateway
   ======================================================================
   VMware ESX 3.5/4.0 or ESXi 3.5/4.0

   4.1 Minimum System Requirements (Virtual Host)
   =====================================================================   
   CPU and Memory:

     - Intel Xeon or AMD Opteron (supporting VT)
     - 1GB RAM 
     
   Required Disk Space:

     - 10GB available for installation

   A permanent outbound Internet connection is required to obtain 
   encryption keys on demand. 

   Note: An inbound Internet connection should be avoided for added 
         security.


   5. Installation
   =======================================================================
   The installation of Encryption for Email Gateway requires a connection
   to a VMware Infrastructure Client. Complete the installation and 
   configuration of the VMware ESX/ESXi beforehand to access the ESX 
   Server host, the VMware Server host, or a VirtualCenter. Installation 
   and configuration of this is outside the scope of this guide and our
   support. However, this information is available for download and free. 

   To begin installation, refer to the Trend Micro Encryption for Email 
   Gateway Quick Installation Guide for more details. For a variety of 
   Deployment options, refer to the Trend Micro Encryption for Email 
   Gateway Administrator's Guide.


   6. Post-Installation Configuration
   =======================================================================
   After Encryption for Email Gateway has been downloaded and setup as a 
   virtual appliance, some post-installation configuration is necessary.
   This information can be found in Chapter 6 of the Trend Micro 
   Encryption for Email Gateway Administrator's Guide.
  
 
   7. Known Issues
   =========================================================================
   The following are known issues for this release:

     * The first email sent through TMEEG might fail with the following result:
       "A message you sent could not be delivered. The following error occurred: 
       Cannot obtain keys. The Key Server cannot be contacted. To resolve 
       this, resend the message." 

       This is known to be an intermittent problem.  

     * If a subdomain registration failed, but the domain succeeded, the 
       Gateway does not recognize an email address of the subdomain as an 
       internal domain. The workaround is to delete the failed subdomain 
       registration from the Manage Domains section.

     * Some email clients do not transmit the character set for attachments 
       within the MIME data. This means when decryption occurs, the file 
       might not display correctly in the associated application if the 
       character set of the contents is not the current set OS language of 
       the recipient.

     * During registration you might receive the following message:

       "Unknown error occurred during registration"

       This could occur when there is no Internet connectivity. Verify 
       that TMEEG has the correct network settings and is able to access 
       the Internet.
       
     * After updating the Encryption for Email Gateway you could receive an 
       "Unexpected Error" message when launching the runtime components.  
       To work around this, use the Restart System Services facility on the 
       System Status page and relaunch the runtime components.
       
     * If the database connectivity is lost during an Encryption for Email 
       Gateway operation, the system services might not reconnect to the 
       database successfully. This impacts statistics not being logged to 
       the database, and keys not being persistant or loaded from the 
       database cache. To work around this, use the Restart System Services 
       facility on the System Status page and relaunch the runtime 
       components.

     * If an email delivery has failed because of an SMTP rejection 
       downstream, the NDR delivery could also fail when the “Attach 
       original message to NDR” option has been selected.
    
     * If a user changes the SMTP listening port, the connection to this 
       port will be blocked by the firewall because there is no policy to 
       allow the connection. The user needs to manually add a firewall 
       policy to allow a connection to the webmin.

     * The Online Help left panel is unable to create folders when using 
       the Apple Safari browser to open the Encryption for Email Gateway 
       Help. To workaround this, open the online Help using the drop box 
       located in the top right of each page of the Encryption for Email 
       Gateway Web console.

   8. Release History
   =========================================================================
      TMEEG V5.0 Build, Nov 2008
      TMEEG V4.0 Build, May 2008


   9. Contact Information  
   =========================================================================
      A license to the 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, Maintenance must be renewed on an annual basis at Trend Micro's 
      then-current Maintenance fees.

      You can contact Trend Micro by fax, phone, and email, or visit us at:
 
      http://www.trendmicro.com 

      Evaluation copies of Trend Micro products can be downloaded from our 
      Web site. 

      Global Mailing Address/Telephone Numbers
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      For global contact information in the Asia/Pacific region, Australia
      and New Zealand, Europe, Latin America, and Canada, refer to:

      http://www.trendmicro.com/en/about/overview.htm

      The Trend Micro "About Us" screen displays. Click the appropriate 
      link in the "Contact Us" section of the screen.

      Note: This information is subject to change without notice. 


   10.About Trend Micro  
   =========================================================================
      Trend Micro, Inc. provides virus protection, antispam, and 
      content-filtering security products and services. Trend Micro allows
      companies worldwide to stop viruses and other malicious code from a
      central point before they can reach the desktop.  

      Copyright 2010, Trend Micro Incorporated. All rights reserved.
      Trend Micro, 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.


  11. Licensing Agreements
  ===================================================================== 

      Information about your license agreement with Trend Micro can be
      viewed at:

      http://us.trendmicro.com/us/about/company/user_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 Installation Guide or
         Administrator's Guide