How do you delete messages in your email outbox?

I was trying to send an email with 27MB of photos and then realized that the capacity was only 20MB. However, no matter how much times I tried to delete it and cancel the task, it would not work. Now, I can't send any other emails. Is there some way to clear the entire outbox?|||yes you high light the one you want to delete and hit the delete button.|||i think you should try to delete the attached pics first and then the e-mail....if still cant,then open another e-mail address and write a letter to the support of the e-mail account which is not working and they will help you.