If you’d like to transfer a domain name from one company to another, you will need to pass through several safety procedures. One of them is getting a special EPP authentication code from the current registrar – as long as you are the registrant, since the code is emailed to the owner's email address and nobody else can see it. You will have to provide this code to the new domain name registrar, or else they will not be able to initiate the domain transfer. The EPP codes are case-sensitive and may comprise of numbers or special symbols such as dots or commas, which can be easily miswritten, so make sure you copy/paste the correct code. As an additional safety measure, the transfer authorization code for a domain may be changed on a regular basis. Some companies call this code a domain secret, a domain password or an Auth key as well.