When enabled, "personal level indicators" put arrows next to messages in your inbox so you can tell if an email was addressed to you, a group, or a mailing list that you're on.
Arrow indicators reveal who actually sent you email. A single arrow ("›") is automatically placed next to emails sent to you and others, and double arrows ("»") next to emails that are sent just to you.
Arrow indicators reveal who actually sent you email. A single arrow ("›") is automatically placed next to emails sent to you and others, and double arrows ("»") next to emails that are sent just to you.