Proxying email with Cloudflare

[taowang]

Also, the doc says "Cloudflare does not proxy email (only http traffic). For this reason, please verify that Cloudflare proxying is disabled for the mail server location."

But I tried enabling the Proxy for my cloudrong domain: my.skillup.day

and I sent a test email. It succeeded.

[taowang]

In the CoudFlare Doc, it says: Evaluate mail infrastructure: If possible, do not host a mail service on the same server as the web resource you want to protect, since emails sent to non-existent addresses get bounced back to the attacker and reveal the mail server IP.

https://developers.cloudflare.com/learning-paths/get-started/security/secure-origin/

Do we need to worry about this "hosting email and app on the same server" aspect with Cloudron?

[girish]

@taowang note that your IP is actually leaked. If you follow the MX record of your domain, you will find your server IP in the DNS. I think this is what the Cloudflare doc is trying to tell you.