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.

Protect your origin server

Your origin server is a physical or virtual machine that is not owned by Cloudflare and hosts your application content (data, webpages, etc.).

Cloudflare Docs (developers.cloudflare.com)

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.