REVERSE DNS (PTR) Problems Exist

[AMoris]

Hi !

Im trying to conf mail on my server, but when i proxied my site with cloudflare mail is stopped working.

Here is error what i see.
I already added DNS “A” record for “server.ufo…net” whose value is “xxx.xxx.146.21” to cloudflare DNS records and to WHM records and problem still exist.

Can someone help me?

Thanks!

[sdayman]

Any hostnames used for sending or receiving email should be set to DNS Only.

Deprecated - Email Troubleshooting

This tutorial is deprecated in favour of Troubleshooting email issues · Cloudflare DNS docs

Archive

This tutorial covers the steps you should take if, when you change your domain to point to Cloudflare, you no longer receive emails to your domain. If you follow this tutorial and still need further help, please let us know what you have tried and share your domain name and, if possible, a redacted screenshot of your DNS records in Cloudflare. <a href="https://youtu.be/hLKyUWQcu08">…

[AMoris]

Thanks for help!

Mail is working now but error is still exist, strange.

[Judge]

By the looks of it your subdomain “server” needs to be unproxied as well since that’s what is hosting the SMTP server.