If you wish to transfer a domain from one domain name registrar to another, you’ll have to go through a couple of safety procedures. One of them is getting a special EPP authorization code from the current domain name registrar – on the condition that you are the registrant, since the code is emailed to the owner's mailbox and no one else can get it. You have to provide this code to the new domain registrar, or else they won’t be able to start the domain transfer process. The EPP authorization codes are case-sensitive and may contain numbers or special symbols such as dots or commas, which can be easily mistyped, so make sure you copy/paste the right code. As an additional security measure, the transfer authorization code for a domain may be altered on a regular basis. Certain domain name registrars refer to this code as an Auth key, a domain password or a domain secret as well.