1、安装邮件服务
yun -y install mailx
2、开启163 邮箱SMTP服务,获取校验码
3、配置邮箱信息
vim /etc/mail.rc
set bsdcompat
set from=programmer_wj@163.com #邮箱地址
set smtp=smtps://smtp.163.com #邮箱smtp地址
set smtp-auth-user=r_wj@163.com #邮箱地址
set smtp-auth-password=MQNYNFXYVLYKTR #smtp生成的校验码
set smtp-auth=login
set ssl-verify=ignore
set nss-config-dir=/root/.certs #163证书目录
4、生成证书
mkdir -p /root/.certs/
echo -n | openssl s_client -connect smtp.163.com:465 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > ~/.certs/163.crt
certutil -A -n "GeoTrust SSL CA" -t "C,," -d ~/.certs -i ~/.certs/163.crt
certutil -A -n "GeoTrust Global CA" -t "C,," -d ~/.certs -i ~/.certs/163.crt
certutil -L -d /root/.certs
cd /root/.certs/
certutil -A -n "GeoTrust SSL CA - G3" -t "Pu,Pu,Pu" -d ./ -i 163.crt
5、发送邮件
echo "test" | mail -a /test/ff.txt -s "Centos test" $M163