If you want to transfer a domain from one registrar company to another, you’ll need to go through a couple of security procedures. One of them is getting a special EPP authentication code from the present domain name registrar – on the condition that you are the registrant, since the code is emailed to the owner's email and no one else can see it. You have to provide this code to the new registrar company, or else they won’t be able to begin the transfer process. The EPP authorization codes are case-sensitive and may contain numbers or special symbols such as commas or dots, which can be easily mistyped, so make sure you copy/paste the correct code. As an extra security measure, the transfer authorization code for a domain may be reset on a regular basis. Some companies refer to this code as a domain password, a domain secret or an Auth key as well.