iPhone 13 18.3.1 won't receive or my domain's email
The only email I can get on my new iPhone 18.3.1 is my icloud.com email
My iPhone 7 worked fine. I've been working for an entire week, with my internet provider, following instructions exactly and no email. Last try, I received email for one day and then it stopped.
I can't send email either; it says "rejected by the server".
I've been working with my provider and they seem to be stumped as well.
Please help. Thank you.
iPhone 7, iOS 15