MX Record failed to add

Good day,
I have 2 hosting, 1 hosting at Europe and 1 at USA(Hostgator). (logically other IP)
A and CNAME is at Hosting1, and I want email at Hosting2.
Cloudflare don´t allow redirect MX to IP, then how??

Hostgator info: Screenshot by Lightshot

Your MX record should match an A record for the name of your mail host. You should have: A your.webserver.address A your.webserver.address A your.mailserver.address MX

If your mail server is a different domain, then you don’t need an A record for the mail server. Just: MX