Hello, where should I bind the corporate mailbox? Do you want to configure it in any client software? Or is it collected by the mailbox? If yes, please ask your webmaster first, whether it is self-built or outsourced. If it is completely self-built, ask the server address, port number and whether SSL needs to be turned on. If you bought it outside, ask where you bought it, because the homepage of the service provider usually provides help information.

For example, Tencent enterprise email, when the client binds, the user name must enter the complete email address, while the POP3 server address is pop.exmail.qq.com, the port number is 995, the SMTP server address is smtp.exmail.qq.com, and the port number is 465. In addition, pay attention to turn on SSL. Like Microsoft's mail client software, you should select this server requires encrypted connection (SSL) in the advanced tab of the properties, and change the following encrypted connection type to SSL.

If it is an Android phone, be sure to change the security type to SSL (accept all certificates) or SSL/TLS (accept all certificates). Apple mobile phone directly opens SSL.