Can I recall / undo / unsend an email that I’ve hit send on?

It is not possible to recall an email in Front.

We recommend extending the Undo timer on your inbox. This will give you more time to cancel the message before it is sent. We have an article here in our Help Center with instructions for changing the duration of the Undo Timer. 

Let me know if you run into any issues or if any additional questions come up. I'm here to help!