Now you can avoid email sender’s remorse with Gmail’s ‘Undo Send’ feature | Naked Security (Sophos blog)
You end up sending that misspelled email to your boss or click “Reply All” instead of “Reply” when you send that reply. Or a late Friday night alone with some music playing on the stereo and a half-empty bottle of whiskey beside you means that you type out that inappropriate email to that former love interest. These can lead to situations where the email you sent can have embarrassing or disastrous consequences.
Google has now integrated a “delayed sending” feature in to the GMail service so that you can opt to cancel sending that email. Here, once you enable this feature, you can specify a certain amount of time to wait before actually sending that email. This enables a “Cancel Send” button which takes the email out of the Outbox so it isn’t on its embarrassing way and would cope with situations like misspelt or misaddressed messages or “half-the-facts” situations. This is another feature that Google dabbled with in their labs to beat the “I wish I didn’t send that” blues and they rolled this in to production GMail deployments.
The previous feature they worked on was a CAPTCHA setup that would come in to play when it is the late evening. Here, you would have to solve a maths equation before you could send out that email, as a way of assessing whether you had a bit too much to drink and were about to send that drunken email. But they could extend this functionality to cope with the drunk email by having a user-selectable option to hold all emails that you send during a certain time window like 10pm-6am on Friday and Saturday nights for a longer time or until the next day.
This can easily be implemented in email client software as well as Webmail setups so you don’t have to use GMail to have these features. But Google is the main email service provider who is targeting the issue of sender’s remorse by providing the delay options.