The Undo Send feature is a handy way to ensure that the wrong email doesn't get sent to the wrong person. If not, you can simply close the message, and it's relegated to your Drafts folder where you can keep it or delete it. After you set up your Mac, you can send messages to one person, a group of people, or a business and include text.

Gmail stops the message from going out and displays it in case you wish to make any changes and then resend it.

To prevent the message from being sent, click the Undo link.

At the top of the screen, you'll see a message that says: 'Your message has been sent.

Compose a message and then click the Send button.

To test the feature, click the Compose button at the upper left corner of your Gmail account page.

Scroll to the bottom of the Settings screen and click the Save Changes button.

Click the drop-box to set the Send cancellation period, meaning the number of seconds you have to prevent the email from being sent.

Click the check box to Enable Undo Send.

Look for the setting that says Undo Send.

From the Settings window, make sure the General tab is selected.

From the Settings menu, choose the option for Settings.

In the upper right corner of the screen, click the Settings icon (the one that looks like a gear).

First, log in to your Gmail account on your computer.

In honor of its new status, let's see how the the feature works:

The Undo Send feature is now an official part of Gmail, no longer relegated to mere beta status in Gmail Labs. But you have to be quick, as Gmail gives you only a specific number of seconds to halt your email.

Gmail's Undo Send feature works differently in that it actually waits to send your email, giving you a certain amount of time to change your mind and prevent it from being sent. Certain email programs offer an option to recall or retract an email, but that doesn't necessarily mean the recipient won't still receive it. We've all sent emails on the spur of the moment that we've regretted. Should you start looking for a new job? Not if you've enabled Gmail's Undo Send feature. Oops, you've just sent off an angry email to your boss from your Gmail account. You can stop that Gmail email from being sent.

To be sent or to be send