Q: Not receiving mail on iOS, iCloud.com

I have a MacBook, using Apple Mail and my me.com mail is being received just fine there.   However, on my iPhone 5 and iPad 2, as well as online at iCloud.com....none of my email received since Thursday are shown in the inbox.   I have had this setup for over a year and have had no issues at all ever.  Until Friday.   Software is all up to date.   I have closed Apple Mail because I saw an old post that said this had cleared someone else's problem last year.  Did not work for me.  I have reset Safari, plugged the phone and pad into the MacBook...any ideas?