Were you at a situation when you needed to recall or cancel a sent email? But, unfortunately that email was already delivered? Well, a way how you can protect yourself from this is by activating the Rule Delay Email Delivery. By using this rule your emails will be delayed for a certain amount of time and then they will be send. Check it out how to do it:
https://www.youtube.com/watch?v=2hzl5y20KlI
