SecureGmail: Send Encrypted Emails from GMail with Google Chrome
The only downside side is you and the recipient should have installed the Google Chrome and same SecureGmail add-on version and this add-on is only for Gmail. If you use Firefox or some other browser, then this won’t help you. Let us see how to send a secure email from Gmail using Chrome add-on.
SecureGmail encrypts and decrypts emails you send in Gmail. This happens all on your machine, and the message can’t be read by Google servers or any third party unless they have the password. This is useful if you don’t want anyone but the intended recipient to ever read your email (i.e. companies, governments, etc). SecureGmail uses symmetric encryption to encrypt and decrypt each message. The password is decided by the user and assumes the recipient already knows it. So select a more complicated password that can’t be guessed/hacked easily and make sure that no body knows your password except the recipient.
Install SecureGmail Add-on
Go to Google Chrome Webstore by navigating to https://chrome.google.com/webstore/category/apps link. Enter SecureGmail in the search box. And click ADD TO CHROME link.
Now login to your Gmail account. You will see a lock icon next to the compose button as shown in the below screen shot.