centos配置邮件服务器
Centos7下使用mail发送邮件修改配置文件，配置邮件相关内容（追加到配置文件末尾）
# vi /etc/mail.rc
set from=373416873@qq.com
set smtp=smtp.qq.com
set smtp-auth-user=373416873@qq.com
set smtp-auth-password=password
set smtp-auth=login
set smtp-port=587
测试
echo "Hello, world" | mail -s "ceshi" 373416873@qq.com
如果不成功，执行下面操作
首先检测相关服务是否已安装
# rpm -qa|grep mail
libreport-plugin-mailx-2.0.9-19.el6.x86_64
mailx-12.4-7.el6.x86_64
procmail-3.22-25.1.el6.x86_64
mailcap-2.1.31-2.el6.noarch
sendmail-8.14.4-8.el6.x86_64
若服务未安，则执行以下命令进行服务安装
# yum install sendmail
# yum install mailx –y
# yum update libreport-plugin-mailx
# yum -y install sharutils
# yum install mutt
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