If you’d like to transfer a domain from one company to another, you’ll need to go through several safety procedures. One of them is obtaining a unique EPP authentication code from the present registrar – on the condition that you are the domain registrant, since the code is emailed to the owner's email address and no one else can get it. You will have to give this code to the new registrar, otherwise they will not be able to initiate the domain name transfer process. The EPP codes are case-sensitive and may include numbers or special symbols such as commas or dots, which can be easily miswritten, so make sure you copy and paste the correct code. As an additional safety measure, the transfer authorization code for a domain name may be changed regularly. Some companies call this code a domain password, an Auth key or a domain secret as well.