Stop the date separation. It adds nothing and wastes space.
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Anonymous commented
The Today, yesterday etc groupings are pointless - the date is shown on the left and most users can read.
Also there is too much white space
and, where has the refresh button gone? -
Dave Lind commented
Get rid of the grouping by Dates. It takes up too much space. I want my Inbox to be emails only. I dont need them broken out by last week, last month, etc. Just have a setting where the emails can be listed from oldest to newest (or Vice Versa), AND regardless if they have been opened of not. Dont get too fancy. Less is more.