Do I need to transfer my domain to use your dns service?

As of now we are offering our free DNS services only to the domain registered with us. We do plan to extend this service for all domains but there is not ETA for that.

• How long is my free email forwarding valid?
• I only have one DNS to use, what can I do?
• Will my website be indexed by search engines if I use URL Forwarding or Framing?
• What is Domain Parking?
• If I use my own DNS will I be able to use your services to forward email?