For some reason, this plugin doesn't catch email sent through Gravity Forms. Gravity Forms works fine with the Configure SMTP plugin activated and going through MandrillApp. Gravity Forms uses a function to send email, with this at the end to return:
$result = wp_mail($to, $subject, $message, $headers, $attachments);
Is it because of how this is handled that it is not going through wpMandrill? Any way to get these two plugins working together?