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Using IIS to route messages to a mail server that requires TLS encryption

Author: Luis Fernandes Updated

Overview 

Some hosted mail servers (e.g. Microsoft Office 365) require the use of TLS encryption. If your FaxMaker version cannot be configured with TLS encryption it can submit the message to the local machine and let IIS route it to the server using TLS encryption.

Solution

To implement this solution, make sure TLS is enabled for IIS' SMTP server.

  1. Change the domain used in the transmission reports to a domain that the mail server will accept
  2. Configure IIS:
    1. Start > Administrative Tools > Internet Information Services (IIS) Manager
    2. Expand the tree under the server name
    3. Expand the Default SMTP Virtual Server
    4. Right-click the Domains icon > select New > select Domain
    5. Add domain configured in step 1
    6. Set 'Allow incoming mail to be relayed for this remote domain'
    7. Set it to forward all emails to the mail server
    8. Open outbound security and enable TLS encryption

NOTES:

  • Other configuration settings may be required depending on your environment, please confirm with your mail server administrator.
  • IIS SMTP component not available natively on Microsoft Windows 7, Microsoft Windows 8 and 8.1.
  • This is a workaround. It's advisable upgrade FaxMaker to the latest version, which supports TLS.

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