Configuration for all clients: http://help.cstnet.cn/changjianwenti/youjianshoufa/kehuduan.htm
Configuration for Express: http://help.cstnet.cn/changjianwenti/youjianshoufa/outlook%20express%20pop3%20ssl%20.html
最需要关注的设置：
“我的邮件接收服务器是”： POP3服务器、“接收邮件(POP3,IMAP或HTTP)服务器”：mail.cstnet.cn、“发送邮件服务器(SMTP)”：mail.cstnet.cn
原文：https://www.cnblogs.com/hizhaolei/p/12961391.html