When I try to add a MX record that points to the mailfence SMTP servers I get the error.
DNS validation error (Code: 1004)
Priority must be and int between 0 and 65535. (Code: 9104)
I have transferred my domain name to cloudflare, I currently have no CName or A record set as I am not hosting a website right now, but I do need the domain for email until I get my website up and running.
I have tried setting the priority to 10, also to 0, 1 and anything else, but always the same error.
Any help gratefully appreciated.