Send a notification to phone and at the very top for two of the following:

Replies to emails
I get a lot of one way emails. Please ensure that conversations are easily noticable.

Contacts that can be highlighted
I would like emails from sites of my choice like Indiegogo. None of the products you back on Indiegogo are ever on schedule, but when it comes in, I would like an option to have those emails highlighted and easily noticable.

 Red flag, highlight colors, a pop-up notification box. Anything helps.

Thanks for reading.