Overview
Phishing and Scam types of emails that are of high concern are those that ask for information from the recipient, such as login information.
Instructions
When you do recognize a phishing email it helps to report it directly to Google so they can analyze and block it more quickly. From the gmail interface in a web browser choose Report Phishing from the drop down menu next to Reply (see image).
Additional Help
See Google support for more information: https://support.google.com/mail/answer/8253?hl=en