If you want to transfer a domain from one registrar to another, you’ll have to pass through a few security steps. One of them is getting a unique EPP authentication code from the present domain name registrar – on the condition that you are the domain registrant, since the code is emailed to the domain owner’s email account and no one else can obtain it. You need to provide this code to the new registrar, otherwise they won’t be able to initiate the transfer. The EPP authorization codes are case-sensitive and may contain digits or special symbols such as dots or commas, which can be easily misentered, so make sure you copy and paste the correct code. As an extra safety measure, the transfer authorization code for a domain name may be changed on a regular basis. Some domain name registrars call this code a domain password, a domain secret or an Auth key as well.