Recently in a blog post, Google said that they will give you warning when start getting sketchy emails. It will help you decide if you want to open an email, click on any attachment inside, and protect us from downloading unwanted data into our computers.
Gmail already features many warning messages, but the new alerts will help in two specific situations:
1. It will tell you if you get emails with links to websites known for hosting malicious softwares
2. If Gmail can't authenticate that sender’s identity.
The warning doesn't mean the emails are definitely sent by bad guys trying to own your computer, Google said.
"But we encourage you to be extra careful about replying to, or clicking on links in messages that you're not sure about," the company added. "With these updates, you'll have the tools to make these kinds of decisions."