When someone sends you email (on Gmail account), and if you click on who he sent it to (let's say it was sent to 5 people), it opens the list of recipients, but for some it only says their mail (example: email@example.com, and for some it has this form: John Doe . My question is what makes this difference. Is it because the sender has the John Doe with name included saved under contacts, or is it something else. I hope you understand what I wrote, English is not my primary language, so I apologize for mistakes. Thank you a lot!!