I always keep the Mail application running in the background (there is a dot below the Mail icon in the Dock but a Mail window is not open) to get notifications about new messages. When I finish work, I don't turn my MacBook off, I make it sleep by shutting the screen pane down. Every time I awake the MacBook in the morning, a Mail window opens as soon as an Internet connection is established. It is very annoying. How to prevent Mail from opening the window on the day first login?
The «Open at Login» option is not turned off in the Mail context menu in the Dock. The Mail application is not listed in «System Preferences» – «Users & Groups» – «Login items».
- MacBook Air 13" 2012
- macOS 10.13.4
- Mail 11.3
Update. Starting from macOS 10.14 Mail opens not only on login but occasionally with no apparent reason (it is very annoying when I'm using a fullscreen application).