Gmail will now warn users when sending and receiving emails over unsecured connection

 As a part of Safer Internet Day, Google has tightened security for Gmail. The online search giant is rolling out new security feature for Gmail, that will warn users when they receive or try to send emails over unsecured connection.

Now, when you receive or send an email to someone whose email service don't support TLS (Transport Layer Security) encryption, such emails can be flagged with a red broken lock icon, on the upper right corner. After clicking the icon a dialog box will appear, warning users that the other party is using an email service that does not support encryption.

Additionally, Gmail will  flag emails received from contacts whose identity cannot be verified. Users will be alerted when they receive email from unauthenticated sources with a question mark in place of the contact's profile photo, corporate logo or avatar.

Google in a blog post said that not all affected email is necessarily dangerous, but advises users to be more careful when replying or clicking on links on such messages.

Google is also offering 2GB of free Google Drive storage, if users complete security checkup on their Google account.

The Safer Internet Day is held annually around the globe, and aims to raise awareness about online safety issues. It is organised by Insafe, a group that run public awareness and education campaigns about internet safety.