How to delete an email in the outbox of Outlook?

Incidently I tried to send an email with a far too heavy attachment...





Now it has been in my outbox for over a day, also making all other sending a very slow process.





Does anyone happen to know how to interrupt or stop that process from sending?





(I have tried everything, but nothing works)





Thanks!!!|||contact MS|||Turn off your computer


Then


Turn it on again.