I use MIB hosting a Domain but with Cloudflare Nameservers and want to use it for another Domain as Mailserver only. The 2nd Domains Registrar is Cloudflare where i use the Nameservers too. Websites of the 2nd Domain I host on another Server. For the 1st Domain all is ok, only yellow at the Status Check for not using MIB as Nameserver.
For the 2nd Domain i only changed the IP of the Subdomain using for the MX Record to the MIB Server. It works, Mails can be received and sent but MIB complaints in the System Check to change it to the first Domains Mailserver Entry: box.domain1.com.
So is it better to change the MX of the second Domain to the first Domains MX which is hosted on the MIB Server or should i leave it to mail.domain2.com? Reputation of the Server is an important Point so i am not sure what to do.
Thanks in Advance