请求数字证书

mkdir -p /root/.certs/

echo -n | openssl s_client -connect smtp.mxhichina.com:465 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > ~/.certs/ali.crt

添加证书到证书数据库中

certutil -A -n "GeoTrust SSL CA" -t "C,," -d ~/.certs -i ~/.certs/ali.crt

certutil -A -n "GeoTrust Global CA" -t "C,," -d ~/.certs -i ~/.certs/ali.crt

列出目录下证书

certutil -L -d /root/.certs

yum -y install mailx

将/etc/mail.rc修改为下面格式

set from=test@ccc.com

set smtp=smtps://smtp.mxhichina.com:465

set smtp-auth-user=test@ccc.com

set smtp-auth-password=password(授权密码)

set smtp-auth=login

set ssl-verify=ignore

set nss-config-dir=/root/.certs

执行

cd /root/.certs/

certutil -A -n "GeoTrust SSL CA - G3" -t "Pu,Pu,Pu" -d ./ -i ali.crt

有这个提示，说明SSL证书配置生成及安装完成 。不执行会导致发送提示证书不被信任,但是仍可以发送.

发送邮件

echo “zabbix test mail” | mail -s “zabbix” cc_test@abc.com

如果发送失败 检查文件夹权限和文件权限并根据报错查看