iCloud Mail add

Hello there, I have problem with the Mx records. I only have a mobilephone maybe it’s different to PC….

But when I add all things from the apple I cloud stuff the send. Mx,Mx and some TXT…. So I do all and when I will enable the mail service again a error appears and then I must delete the edits I create. Hope someone can help me.

Eventuell auch auf deutsch …