Some email comes to iPhone but not to Mac
Recently some, but not all, mail to one of my two email accounts (not the "me.com" account but from my local ISP) arrives on my iPhone but not on my Mac (both devices using newest OS). I can find nothing in Settings, System Prefs, or anywhere else which might explain the problem.
MacBook Air, OS X El Capitan (10.11.6), + other Macs & Apple stuff, etc.