centos7 uses thunderbird

1. Use qq mailbox configuration The
configuration is as follows:
pop3 : pop.qq.com port 995 ssl/tls
smtp: smtp.qq.com port 465 ssl/tls
2. Use 163 mailbox configuration
In the smtp server settings, set the connection security Set it to SSL/TLS, and the verification method is set to ordinary password to send emails normally. The
settings can be used the same as QQ mailbox.