If you decide to transfer a domain name from one company to another, you will need to go through several security procedures. One of them is obtaining a unique EPP code from the present registrar company – provided that you are the registrant, since the code is sent to the domain owner’s email account and nobody else can get it. You’ll have to provide this code to the new registrar, or else they won’t be able to initiate the transfer procedure. The EPP authorization codes are case-sensitive and may comprise of 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 regularly. Some registrars call this code a domain secret, an Auth key or a domain password as well.