linux 发送邮件（centos）

1.安装mailx

安装mailx:

yum install mailx

 

vi /etc/mail.rc

set [email protected]
set smtp="smtps://smtp.qq.com:465"
set smtp-auth-user=12345678
set smtp-auth-password=xxxxxxx (邮箱账号的客户端授权码，需要登陆自己的邮箱进行设置，不是邮箱密码)
set smtp-auth=login
set ssl-verify=ignore
set nss-config-dir=/etc/pki/nssdb

 

测试：

echo test | mailx -v -s "test"  [email protected]

2.生成certificate

解决报错：

使用上面的配置，邮件是完全能够发出去的，但是发送邮件的时候会提示 “Error in certificate: Peer’s certificate issuer is not recognized.”提示，运行以下命令生成一个证书即可。

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

生成完成之后，修改 mail.rc 邮件配置，修改 nss-config-dir 为上面命令生成的 /root/.certs，保存即可

3.shell脚本

创建一个shell脚本如下：

#/bin/bash
#author:findyou
help(){
   echo "eg: $0 [Subject] [address] [content_file] [file]"
   echo ""
   exit 1
}

sub="the mail"

cDate=`date +%Y%m%d`

if [ ! -n "$1" ] ; then
    help
else
    mail_to=$1
    echo "      Send Mail to ${mail_to}"
fi

if [ ! -n "$3" ] ; then
    mail -s 'the mail' ${mail_to}<$2
else
    mail -s 'the mail' -a $3 ${mail_to}<$2
fi

调用：./mail_send.sh  [email protected]  /opt/send.log