Gmail is a email service which is provided by google. You can secure our data in gmail. Learn how to password protect an email in gmail. It is one of the best email service. Gmail is used by 800 million’s people. Every user used 15 GB bandwidth from a account. It is highly secure and trusted email service. Everyday million’s of people use this service to share our information with one another.
For this purpose you need a chrome extension named secure mail for gmail. Install this extension and send password protected email easily.