In order for the module to perform tracking, please add the code "{$dpl_mailtracker}" in your email template. If you want to track all mails, you can add the code in the WHMCS settings at "Client Email Footer Content".
In order for the module to perform tracking, please add the code "{$dpl_mailtracker}" in your email template. If you want to track all mails, you can add the code in the WHMCS settings at "Client Email Footer Content".