1. First, open Meituan.com's homepage, click Login, enter your account and password, and click Login.

2. Secondly, in the upper left corner of the page, click "My" account to enter, and under "My" account, click Account Settings to enter.

3. Then click the mailbox to bind immediately. Fill in the email address to be bound and enter the verification code to confirm.

4. Then click View Email Now to activate the email. Open the mailbox and click the activation link to enter.

5. Finally, return to the account settings to check, and the basic information and mailbox are successfully bound.