What does the question mark icon next to the sender's email in Gmail stand for?
I have been able to deduct what the X and the exclamation mark stand for but can't figure it out with the question mark.
Web Applications Stack Exchange is a question and answer site for power users of web applications. It only takes a minute to sign up.Sign up to join this community
This is a 2016 Gmail feature. It indicates that Gmail can't confirm the sender's identity. In other words, Gmail is telling you that the email could be from a different sender than it says it's from.