QQ mailbox cannot receive Haitang verification code

The verification code is delayed or is judged as spam. The reasons why the Haitang verification code cannot be received in QQ mailbox are:

1. The verification code is delayed because of network delay or network lag, resulting in the verification code not being sent to the mobile phone text message in time and needing to be logged in again. Past the verification code on the new webpage;

2. The email was judged to be spam. The verification code has been received, but the mailbox server judged it to be spam, so the mail was automatically transferred to the trash can. It needs to be checked in the mailbox. Check whether there is a sending record in the self-service query on the homepage.