Official Gmail Blog: New in Labs: Stop sending mail you later regret
Had I read this on April 1st I would dismiss this as an April Fools joke. Maybe that’s even where this ingenious idea started. I’m talking about Google’s latest Google Labs addition, Mail Goggles! Even the name is funny!
The concept is awesome. This add-on lets you define a period of time during the day throughout the week when you are most likely to to send e-mails you surely will regret later. You probably get the idea, but to illustrate; that e-mail to your ex asking to get back together, or that drunken gibberish you sent to your team mailing list at work. All these horrible, but probably brilliant, ideas can now be prevented!
Mail Googles settings
The way it works is fairly simple. You go to Gmail / Settings / Labs and enable Mail Googles. Set your settings and choose your difficulty level as shown above. Next time you feel inclined to write a masterpiece at 2am after 12 beers and a tray of Jäger shots you might be presented with a screen similar to this after hitting that infamous Send button.
This will seem hard if you're an idiot
Now some of you should consider leaving this on all the time – I’m just saying! You know who you are!