As a suggestion to the developers, I feel as if there should be more notification options for everyone. A few examples are: league mail, private chats, etc. to help every commander stay in touch and alert at all times. The notification options we get now are if a city is being attacked or troops/cities lack supplies and so on, but we don't have any options for receiving mobile notifications for chats or mail.
My suggestion is inspired by my team's communication and how we live in separate time zones, so we are unable to reply faster unless we are constantly on the game. Hopefully this suggestion of mobile notifications for chats and mail will run through to the developers, I feel as if it would help leagues become more aware and alert.