If you make a regret sending a message, you can undo the action by enabling the "Undo send" lab.
This lab will give you the option to take back a message you just sent.
this option will work within one 0r two hours
Follow the following steps :
- Click the gear icon at the top of your Gmail page and select Mail settings.
- Click the Labs tab.
- Find the "Undo Send" lab and select the Enable radio button.
- Click Save Changes at the bottom of the page.
- Click on gear icon again and select general tab .
- Now you see "Undo send " option here and select the time for undoing a message.
This thing is applicable for Gmail. Please check for other email
service provider whether any such option is there or not . if yes,
then please let me know the procedure.