Google is doing what it can to make Gmail that much safer for its users.

On Tuesday, which the company also pointed out is Safer Internet Day, Google announced Gmail on the Web will now offer users an alert if they're about to receive a message from or send a message to someone from an unsecure connection.

The alert will appear as a broken lock icon in the upper right-hand of the email message, and it will show up on users' screens if they're about to receive a message from or send a message to someone whose email service doesn't support the Transport Layer Security (TLS) encryption that Gmail has always supported and uses to automatically encrypt incoming and outgoing emails.

Taking the level of security a step further, Gmail users will also see a question mark in place of the sender's profile photo, corporate logo or avatar when receiving a message that can't be authenticated, as an additional new feature.

As part of its announcement, Google adds that, while all affected emails aren't necessarily dangerous, the company is trying to implore Gmail users to be that much more careful about replying to or clicking on links within messages that appear suspicious.

These extra security features should help their decision-making process.