If you decide to transfer a domain name from one registrar to another, you’ll need to pass through a couple of safety procedures. One of them is obtaining a special EPP code from the current registrar company – provided that you are the registrant, since the code is sent to the owner's email and nobody else can get it. You have to give this code to the new domain registrar, otherwise they won’t be able to begin the domain transfer. The EPP authentication codes are case-sensitive and may include numbers or special characters such as commas or dots, which can be easily miswritten, so make sure you copy/paste the right code. As an extra security measure, the transfer code for a domain name may be altered on a regular basis. Some domain registrars call this code a domain secret, a domain password or an Auth key as well.