What can the mobile phone 139 mailbox be used for?

Hello! 139 mailbox is the exclusive mailbox provided by China Mobile to users, which can facilitate users to send, receive and manage email information anytime and anywhere through SMS, MMS and WAP. Provide SMS, MMS, Cai Yun network disk, cloud post office, phone bill and other functions, and provide convenient and safe email services such as email arrival notification and login reminder. Enter mail. 10086.cn in your computer or mobile browser to log in. You can also edit the short message "KTYX" to 10086 and open a free email address. 139 mailbox is really easy to use, open the experience quickly!