$ dig eom.dev
returns your A record pointing to 136.56.38.209.
but
$ dig -x 136.56.38.209
returns PTR record pointing to 136-56-38-209.googlefiber.net., not eom.dev..
Do you host this site at home?
Then I think you can’t set the reverse DNS because the IP address is owned by the ISP (in this case Google?).
Possibly you can ask google to set the reverse DNS, but google probably don’t set that.
I will also check if I can opt out your domain from the FCrDNS filter.
By the way, can you send and receive emails from different domains like gmail.com?