Configure and enable DKIM signing settings from the command line interface (CLI) on the parent device.

Procedure

  1. Connect to the IMSVA parent device as root.
  2. Edit the configuration file /opt/trend/imss/config/dkim/dkim.ini.
    1. Enable DKIM signing.
      dkim_enabled=true
    2. Specify a set of domains that will be included in DKIM signing.
      Note
      Note
      Use a comma (,) to separate multiple domains, for example, [example.com,*.example.com].
    3. Specify the domain of the signing entity.
      SDID=example.com
    4. Specify the path of the private key file.
      private_key=/opt/trend/imss/config/dkim/keys/private.pem
      Note
      Note
      Make sure the private key is in PEM format. Optionally generate the key using the following built-in tool: /opt/trend/imss/bin/dkim-genkey.
      After running the tool, find the key in the current directory. The default key name is default.private.
  3. Run the following script to validate the dkim.ini file:
    /opt/trend/imss/script/dkim_tool.sh
    Note
    Note
    Wait approximately 3 minutes for the configuration file to take effect.