In the emClient Interface on IoS, emails are occasionally tagged with the ‘NonJunk’ and while it might see attractive, (assuming the logic checks your contacts) it is not accurate, and can fool people to trust a malicious message. There is no setting to control this, but it should be off by default IMHO.
Also, it is counter productive, as it takes up real estate visually, that could be better used to display more of the email content snippet.
Looks pretty, but think it has to go from a security perspective…