You need to download and register an email address. You can download Mailbox Master. After downloading Mailbox Master. You can register using pinyin letters. You can also register using pinyin plus Arabic numerals. After registration, the email address can send and receive emails. You can also use the email account to register application software. The registered number is your email account. It is also your email address. The specific operations are as follows:

1. Open Douyin, enter the "I" interface, and click the three-line list mark in the upper right corner.

2. Click the three-line list and the extension will appear. Click "Settings".

3. Click "About Douyin" in the "Settings" extension.

4. You can copy the Douyin email address directly here.