The specific analysis is as follows:
You don't need to download the app of qq mailbox directly to log in to qq mailbox. Open QQ mailbox on the computer, click Settings, click Account, drop down, find POP3 service, and select Open All.
Close the email, open the email attached to your phone, and then select qq email.
Fill in the relevant information, click Set Server Manually, select pop, select SSL, and log in successfully.
The edu mailboxes of foreign universities mainly use Google and Microsoft. Jump to the school information page or log in directly before logging in. Both Google and Microsoft can be added to mobile phones, but the mailbox master is a domestic APP after all, and you can log in to the computer to set up foreign mail forwarding without logging in.