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配置postfix转发局域网邮件以及邮件黑洞
source link: https://bajie.dev/posts/20240124-postfix_blackhole/
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配置postfix转发局域网邮件以及邮件黑洞
2024-01-24
1 分钟阅读
配置postfix允许自由转发内网的邮件，就改一个地方即可，添加允许发送的内网网段：
vi /etc/postfix/main.cf
...
mynetworks = 127.0.0.0/8, 172.16.0.0/16
...
配置黑洞，所有邮件都接受，然后drop丢掉
relayhost =
relay_transport = relay
relay_domains = static:ALL
smtpd_end_of_data_restrictions = check_client_access static:discard
当然，也可以把这些邮件都给送到amavis去，训练它识别垃圾邮件
测试邮件发送的命令：
echo "body of your email" | mail -s "This is a Subject os version" -r "[email protected]" [email protected]
注意：CentOS和Ubuntu默认居然都没有mail这条命令的话
yum install mailx
apt-get install bsd-mailx
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