The wait is over!
Your zone google.com has now access to the Email Routing Beta. You can access Email Routing in the Cloudflare dashboard. Select your account and zone, and click Email.
You can create as many custom email addresses as you want for your domain. Emails will be delivered to the mailbox of your choice (like Gmail, Outlook, or your work email address).
We strive to make the enrollment and usage as straightforward as possible, so please share your feedback with us on the community forum.
Enjoy the beta!
The Cloudflare Team
从 Cloudflare 官网来看，是转发邮箱
Create custom email addresses for your domain and route incoming emails to your preferred mailbox.
也就是说，只能收邮件【转发到你自己的已有邮箱中】，不能发邮件，但是有 Catch-all 功能，这个很强大，也是我所需要的，于我而言，Cloudflare 域名转发邮箱目前的功能够用了