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1、安装mailx

yum -y install mailx

2、配置mail

qq邮箱授权码生成:

vim /etc/mail.rc
set from=xxxxxx@qq # 这里必须和set smtp-auth-user的邮箱一样
set smtp=smtps://smtp.qq:465
set smtp-auth-user=xxxxxx@qq
set smtp-auth-password=你的 QQ 邮箱授权码
set smtp-auth=login
#set smtp-use-starttls 这里是不需要配置的,很多地方没说明,配置了反而会验证失败,所以我注释掉;
set ssl-verify=ignore
set nss-config-dir=/root/.certs

3、配置QQ邮箱的SSL证书

mkdir -p /root/.certs/

执行下面的命令

echo -n | openssl s_client -connect smtp.qq: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

为了防止出现前文所说的发送邮件警告提示,还需要进入邮箱 SSL 证书存放目录 /root/.certs 里执行如下命令:

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

返回如下提示即可:

Notice: Trust flag u is set automatically if the private key is
present.

4、通过命令行发送测试邮件

mailx -s “邮箱测试” xxxx@qq < message_file.txt

本文标签: 邮箱 Linux QQ