InMotion Hosting Support Center

One of the steps you can take to stop spam scripts is to enable SMTP Restrictions in WHM. This particular feature will prevent users from bypassing the mail server to send mail. When enabled it only allows delivery through MTA, mailman, and root connect to remote SMTP servers.

NOTE: This setting does require that you have root access to WHM.

Using SMTP Restrictions

  1. Login to WHM as the "root" user.
  2. SMTP Restrictions menu

    In the left-side menu pane, look for and then click on SMTP Restrictions

  3. Enable SMTP Restrictions

    Click on Enable in order to turn on SMTP Restrictions

  4. For more information on SMTP Restrictions settings in WHM, please see the official documentation.

You can also click on Tweak Settings and use the Mail section to make further changes to the configuration.

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