POP3 (Post Office Protocol 3) Pop is an E-mail Protocol applicable to offline models in the C/S structure. It has now evolved to the third edition, POP3 ., It specifies how to connect a personal computer to an Internet mail server and the electronic protocol for downloading emails. It is the first offline protocol standard for Internet email. POP3 allows you to store emails on the server to a local host (your computer, delete the emails stored on the mail server, while the POP3 server receives emails from the mail server following the POP3 protocol.
SMTP (Simple Mail Transfer Protocol) is a Simple Mail Transfer Protocol. It is a set of rules used to send mail from the source address to the destination address, which controls the transfer mode of mail.
The SMTP protocol belongs to the TCP/IP protocol family, which helps each computer locate the next destination when sending or transferring letters. Through the server specified by SMTP protocol, we can send e-mail to the recipient's server. The whole process takes several minutes.
The SMTP server is a mail sending server that follows the SMTP protocol and is used to send or send emails you send.
How to set the email client software:Http://help.163.com/07/0524/13/3F8S6NG9007525G0.html