1. Click File
2 . Click Add Account
3 . Fill in the email account, Click Let me set up my account manually , Click Connect
4 . Click POP
5 . Fill in the POP address and SMTP address, Click Connect
POP : pop.chengmail.cn
SMTP : smtp.chengmail.cn
6 . Fill in the email password, Click Connect
7 . Cancel checkbox, Click Done
8 . Click File
9 . Click Account Settings
10. Click Change...
11. Cancel the Remove from server after [ 14 ] days checkbox
12. Click Done
If you want to use imap to receive mail.
In the fourth step, choose IMAP.
4 . Click IMAP
5 . Click IMAP
IMAP : imap.chengmail.cn