Google has made it easier for those who regret sending an email that is not supposed to be sent out. Gmail users can now celebrate because Gmail's "Undo Send" button becomes permanent as announced by Google last week.

The Gmail feature has been in beta version for the last six years as part of Google Labs, features that the company offers to the public to test out before the release.

It was initially incorporated to Gmail mobile app "Inbox" for iOS and android, so tech-savvy users are more familiar with the feature. But now, the "Undo Send" is finally introduced into the Gmail web settings.

"'Undo Send' allows Gmail users to cancel a sent mail if they have second thoughts immediately after sending. The feature is turned off by default for those not currently using the Labs version, and can be enabled from the General tab in Gmail settings," the official announcement reads.

While this can be a great feature for those who constantly have regrets after sending a bad email, it has a downside to it.

Users will only be given five to 30 seconds—depending on user preference—after hitting the send button to take back the email, which was sent by mistake or one that contains ill-natured content.

The Undo Send feature comes in very handy for those who accidentally typed in errors that could, for instance, jeopardize an application for a career in journalism, or those who created a message under the influence of alcohol, or even for anyone who experienced clicking on the "Reply All" button in an email thread.

As for email marketers who use Gmail, the feature may not mean a lot, but it does help them improve on their content, making sure that no typo and error exist before sending the mail to their client list.