安装邮件发送软件mailx
yum -y install mailx
测试是否安装成功 which mailx
编辑配置文件
vi /etc/mail.rc 在文件末尾添加如下配置
set from=*****@qq.com #发送邮箱，你的邮箱账号
set smtp=smtp.qq.com
set smtp-auth-user=*******@qq.com #授权账号，你的邮箱账号
set smtp-auth-password=********* #授权码，详见下图
set smtp-auth=login
set smtp-use-starttls
set ssl-verify=ignore
set nss-config-dir=/root/.certs #ssl授权文件路径
qq邮箱smtp开启和授权码获取
登陆网页版qq邮箱
设置-账户-POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务-开启smtp服务
配置QQ 邮箱ssl证书
mkdir -p /root/.certs/
echo -n | openssl s_client -connect smtp.qq.com:465 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > ~/.certs/qq.crt
certutil -A -n "GeoTrust SSL CA" -t "C,," -d ~/.certs -i ~/.certs/qq.crt
certutil -A -n "GeoTrust Global CA" -t "C,," -d ~/.certs -i ~/.certs/qq.crt
certutil -L -d /root/.certs
cd /root/.certs/
certutil -A -n "GeoTrust SSL CA - G3" -t "Pu,Pu,Pu" -d ./ -i qq.crt
