centos7怎么使用postfix發送郵件

[root@mail?~]#?yum?-y?install?postfix?mailx [root@mail?~]#?systemctl?start?postfix [root@mail?~]#?systemctl?enable?postfix [root@mail?~]#?netstat?-anput?|?grep?25 tcp????????0??????0?0.0.0.0:25??????????????0.0.0.0:*???????????????LISTEN??????1820/master

[root@mail?~]#?vim?/etc/postfix/main.cf myhostname?=?mail.mds.com mydomain?=?mds.com myorigin?=?$mydomain inet_Interfaces?=?all mydestination?=?$myhostname,$mydomain

[root@mail?~]#?mkdir?/root/.certs [root@mail?~]#?echo?-n?|?openssl?s_client?-connect?smtp.163.com:465?|?sed?-ne?'/-BEGIN?CERTIFICATE-/,/-END?CERTIFICATE-/p'?>?~/.certs/163.crt [root@mail?~]#?certutil?-A?-n?"GeoTrust?Global?CA"?-t?"C,,"?-d?~/.certs?-i?~/.certs/163.crt [root@mail?~]#?certutil?-A?-n?"GeoTrust?SSL?CA"?-t?"C,,"?-d?~/.certs?-i?~/.certs/163.crt [root@mail?~]#?certutil?-L?-d?/root/.certs [root@mail?~]#?certutil?-A?-n?"GeoTrust?SSL?CA?-?G3"?-t?"Pu,Pu,Pu"?-d?~/.certs/?-i?~/.certs/163.crt

[root@mail?~]#?vim?/etc/mail.rc set?ssl-verify="ignore" set?smtp-auth="login" set?from="mds302587@163.com" set?smtp="smtps://smtp.163.com:465" set?smtp-auth-user="mds302587@163.com" set?smtp-auth-password="123456" set?nss-config-dir="/root/.certs"

[root@mail?~]#?systemctl?restart?postfix [root@mail?~]#?echo?"This?is?a?test?mail"?|?mail?-s?'郵件測試'?452666750@qq.com