Cloudflare于2022年推出的邮件路由服务，通过DNS层MX记录接管域名邮件，支持事件驱动方式触发Workers脚本处理邮件
Cloudflare Email Routing provides a free domain email forwarding service that supports the Catch-all feature
Cloudflare Email Routing only supports receiving and forwarding; it cannot be used to actively send emails.