1. log in your Baidu Pan(Cloud).
2. Go to: https://passport.baidu.com/v6/bindemail
click “更换邮箱” (change email)
3. Enter your own email address and click”发送验证码”（sent code）
So far, Baidu only accepts the mailbox in China as a security email, you can have a try with your email, but as we know, email not from China only @hotmail.com @outlook.com @live.com @yahoo.com works.
4. At the same time you receive the “ 百度帐号–邮箱安全验证” email from baidu <[email protected]> , copy the code from the email.
5. Paste the code into the blank and click “确定”（confirm）
6. Now you changed your Baidu Pan (cloud) email succeed.
7. Refresh the page, It’s your new Baidu Pan(cloud) security email.