Google has added a new feature in Gmail Labs that allows users to retrieve email messages. A new Undo Send button will hold an email for five seconds after the user clicks send. Google says the purpose of this feature is to allow users to recall emails that were sent to the wrong person, have the wrong subject heading or are missing a file attachment.

“This feature can’t pull back an email that’s already gone; it just holds your message for five seconds so you have a chance to hit the panic button. And don’t worry – if you close Gmail or your browser crashes in those few seconds, we’ll still send your message,” said Michael Leggett, Gmail user experience designer, in the Gmail Blog.