If you would like to transfer a domain from one registrar company to another, you’ll have to go through several safety steps. One of them is getting a unique EPP authentication code from the current registrar company – as long as you are the registrant, since the code is sent to the domain owner’s email address and nobody else can see it. You’ll have to give this code to the new domain registrar, otherwise they will not be able to begin the transfer. The EPP authentication codes are case-sensitive and may include digits or special characters such as dots or commas, which can be easily misentered, so make sure you copy & paste the right code. As an extra protection measure, the transfer authorization code for a domain may be changed on a regular basis. Some domain registrars call this code an Auth key, a domain password or a domain secret as well.