Integrate with iPhone favorite contacts
Customize notifications so that only emails from favorite contacts are notified. I don’t want to get distracted by a notification from non-important sources
You should introduce an option to filter the inbox to show only emails from "favorite" contacts, to replicate the iOS VIP mail app functionality. Currently, you have to scroll through a list of favorite contacts which is unwieldy and doesn't scale with many favorites. Bonus if badge count / unread count can be set only by unread emails coming from "favorites".
Absolutely. This was part of the old Mail app and it was very useful.