You must have gone though a situation when you have accidentally sent text to the wrong person or to a wrong number. And after we do that, you are left with 2 options, either you can cry like a baby or we can pretend that your account got hacked somehow.

You must have gone though a situation when you have accidentally sent text to the wrong person or to a wrong number. And after we do that, you are left with 2 options, either you can cry like a baby or we can pretend that your account got hacked somehow.

But guess what, you don’t need to do any of that. We are going to see a better, ‘third option’ on How to avoid sending accidental text.

Sms

So after you send a wrong message,Immediately put your phone on the airplane mode. When the message fails to deliver, delete it.In case you are having smartphones you can use SMS delay application like AskToSend for iPhone (need jailbreak) while Android users can use SMS Scheduler for scheduling SMS in advance or Undo SMS to confirm each time when the message is send.

Unfortunate above mention workaround and apps will work only with data SMS and not with IM clients like Whatsapp and Facebook. So is there a way to undo them ? Well apparently no, once the message has reached the server you can do nothing to prevent it from reaching the recipient. However if your internet connection is slow you can delete it before the message reach the server.
There is another famous saying on the internet, which says

"If you wish to stop a whatapp message from being delivered to a recipient, I have found that after you have sent this () and before this is delivered () you add the person temporarily to your block list until they come online next as you can still see there date stamp. The message then doesn't get delivered. You can then reinstate them and the message will never get delivered and stays in the status of "

This is untrue. I have tried this method on different platform and it didn’t work. Once the message is delivered to the server, there is no way to delete it not even by temporarily blocking the contact.

Email

There is no way to delete a send email but fortunately there is a workaround to delay emails in Gmail.
So if you often find yourself sending incomplete emails with missing information or grammar/spelling mistake then you can use Gmail labs feature called undo send.

To Turn it on from your Gmail > Setting > Labs > Search for Undo Send. After you install this feature it will display an undo send option for sometime after you hit the send email button.

Source : http://watchnewtech.blogspot.in