centos7使用QQ邮箱发送邮件
1、确认服务器是否安装mailx
安装命令为yum install -y mailx
2、配置/etc/mail.rc
#vim /etc/mail.rc#在文件末尾加上set from=2365285094@qq.com #发送人set smtp=smtps://smtp.qq.com:465 #qq邮箱的smtp server和端口set smtp-auth-user=2365285094@qq.com #发送人的用户名set smtp-auth-password=etsxxxxxxceiebig #授权码 具体可以登录自己的QQ邮箱开启smtp并且获取到授权码set smtp-auth=login #默认set smtp-use=starttlsset ssl-verify=ignore#存放QQ邮箱SSL证书的位置set nss-config-dir=/root/.certs/3、获取证书（我不知道在干嘛）
mkdir -p /root/.certs/echo -n | openssl s_client -connect smtp.qq.com:465 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > ~/.certs/qq.crtcertutil -A -n "GeoTrust SSL CA" -t "C,," -d ~/.certs -i ~/.certs/qq.crtcertutil -A -n "GeoTrust Global CA" -t "C,," -d ~/.certs -i ~/.certs/qq.crtcertutil -L -d /root/.certscd /root/.certs/certutil -A -n "GeoTrust SSL CA - G3" -t "Pu,Pu,Pu" -d ./ -i qq.crt4、测试发送邮件
echo 'test' | mail -s 'test' 970014590@qq.com