SSL Certificates for Resellers (Enable https)
You can setup HTTPs for your reseller subdomain using a service like Cloudflare.
To do this, you'll need to setup your domain on Cloudflare, then point the subdomain of your choice to your reseller dashboard.
If you need assistance setting this up, please contact Cloudflare sales/support.
You will need your own domain for this to work, you won't be able to use xxx.online-send.com.