@icloud.com email address no longer available on my mail app mac desktop
I have an @icloud.com email address that I've had for years (not same as my apple id). I have it set up on my iphone and on my Mac desktop. However, I don't know what happened a few weeks ago (stupid automatic updates) but I could no longer access, or add my @icloud email on Mail app. on my desktop. On my iphone, no problem, my @icloud.com email is still coming through. But not on my Mac desktop. When I try adding my @icloud.com address it says I'm already signed in with my apple id. But I use my gmail for my apple id. What am I doing wrong and why is it an issue now after so many years? This is very frustrating.
iMac Line (2012 and Later)