这两天准备将在 Yahoo 注册的一个域名转回来，给雅虎发邮件又咨询了一下，收到了回信好像比以前简单了，这是他们的回复：

If you are transferring your domain registration to another registrar
(away from Yahoo!), then your new registrar will ask you for
authorization code.

An authorization code is a key code only applicable for .com, .net, .us,
.biz and .info domain names.

Lee, in order to retrieve the authorization code, please follow the below
mentioned steps as:

1. Log into Yahoo! Small Business with your Yahoo! Id and password at
the URL:

http://smallbusiness.yahoo.com/

2. Click on the link “Domain Control Panel”.
3. At the end of the page, you will see a link “View Your Authorization
Code”. Click on that link and you will get the authorization code.

Li, you can now easily transfer your domain with that authorization
code.

Please make sure to cancel your domain once it is completely
transferred. This will help you in getting billed further.