As of March 15th at 1:30pm MDT I can no longer get mail as I have for 20 years through a third party app which was long before Apple had their own. So I had to find my own. I now get a message that I would get when Apples servers were having problems. I pray that this is temporary. I called Apple and all the Senior Tech Rep did was argue with me. I can use the Apple Mail client but it is so lacking in features and I have 20 years of mail in a format that Apple doesn't support. But the free third party app no my $39 Android tablet works. Apple still has the page with all the settings for third party apps and I have checked and rechecked and all my settings are as Apple says they should be and have been since their last changes. I wonder what Apple is up to now that they, as usual, are not telling us until enough people complain. Just wondering if anyone else out there is having any problems?