If you want to transfer a domain name from one registrar company to another, you’ll need to pass through several safety steps. One of them is obtaining a unique EPP authorization code from the present domain name registrar – provided that you are the domain registrant, since the code is emailed to the owner's email and no one else can see it. You have to give this code to the new domain registrar, otherwise they will not be able to begin the transfer procedure. The EPP authentication codes are case-sensitive and may comprise of numbers or special characters such as dots or commas, which can be easily mistyped, so make sure you copy/paste the right code. As an additional protection measure, the transfer authorization code for a domain may be altered regularly. Certain domain registrars refer to this code as a domain password, a domain secret or an Auth key as well.