First Time Sender
This banner may appear the first time you have received an email from a new sender. This is a low priority notice just to make you aware that you have never received an email from this person (in case an attacker is trying to make you think they are someone else).
When an email is confirmed as dangerous by our Visible-IR (Incident Response) Team, the following banners may appear at the top of the email. In addition to this banner the email may be moved to either your Junk or Deleted email folder depending on the threat detected