Because I don't know which mailbox the landlord wants to bind, let's take QQ mailbox as an example.

QQ software auxiliary account is divided into: mobile phone auxiliary account (mobile phone number) and email auxiliary account (email number);

Function:

1. Enter your email address and mobile phone number to log in to the QQ client;

2. Others can find your account through email and mobile phone number;

3. Set your mobile phone number or email address as the main account, and only allow others to find you through the main account.

1. Go to my QQ Center (/) webpage → Account → Click the "Bind Now" button of email account;

2. After the operation window pops up, you can add the corresponding mailbox as needed (if non-QQ.com/foxmail.com mailbox is bound, you need to activate the mailbox); If the QQ mailbox corresponding to your QQ number already has a mailbox alias (apply in QQ Mailbox Settings → Account → Email Account), the system will automatically pull your "Email Alias" information for you to choose when you bind your account.