1. First, set up the odoo outgoing server
First confirm whether your 163 mailbox has the following services enabled
POP3服务器: pop.163.com
SMTP服务器: smtp.163.com
IMAP服务器: imap.163.com
It should be noted here that the setting content is as shown above, but the password needs to be changed to the authorization code of 163 mailbox.
2. Delete other email-related content in the system parameters, leaving only one item. And, you need to change the domain name to 163.com, which is the content behind the mailbox @