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Using SMTP authentication when sending or forwarding outbound mails to an upstream server on InterScan Messaging Security Suite (IMSS)

    • Updated:
    • 27 Jan 2016
    • Product/Version:
    • InterScan Messaging Security Suite 7.1 Windows
    • InterScan Messaging Security Suite 7.5 Windows
    • Platform:
    • Windows 2003 Enterprise Server
    • Windows 2003 Standard Server Edition
    • Windows 2003 Standard Server Edition 64-bit
    • Windows 2008 Enterprise Server
    • Windows 2008 Enterprise Server Edition 64-bit
    • Windows 2008 Standard Server Edition
    • Windows 2008 Standard Server Edition 64-bit
Summary

Configure IMSS during any of the following scenarios:

  • Any outbound email must pass through a specific MTA server.
  • Sending MTA (IMSS) must successfully authenticate in the upstream MTA using a specific account before it can forward the outbound emails.
Details
Public

The procedure below assumes the following setup:

Client > Internal MTA > IMSS > External MTA (10.0.0.1:25)> Internet
Account used user@domain.com to authenticate
IMSS's default relay is set to 10.0.0.1 - this sets imss to send all other mails intended for domains not listed in the domain based delivery to 10.0.0.1

To use SMTP authentication:

  1. Back up the tsmtpd.ini file.
  2. Open the tsmtpd.ini file and go to the [SmtpClient] section, and then add the following parameters:
     
    The modification is made on the DefaultRelay. This means that all mails will be forwarded to the declared MTA if the recipient domain does not have any smarthost configured.

    [DefaultRelay]
    SmartHostCount=1
    SmartHost0=10.0.0.1:25:1: user@domain.com:<encrypted password>
    UseMethod=1
    DNSServerCount=0

  3. As stated in the tsmtpd.ini file, you must encrypt the password. Open a command prompt, go to the IMSS bin folder, and execute password.exe.

    Syntax:
    <imss\bin folder>\password.exe <password>

    A set of characters, which is the encrypted password, will be generated.

  4. Enter the encrypted password in the password area of the "SmartHost0" parameter.
     
    The [DefaultRelay] must be added. This is commented by default.
  5. Save and close the tsmtpd.ini file.
  6. Restart the IMSS SMTP service.
Premium
Internal
Rating:
Category:
Configure; Deploy
Solution Id:
1057424
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