You first have to find out why the message wasn't sent. The error message should give the reason; please click on it to select it, then use right-click to copy it and paste it into your reply here.

You don't have to delete an unsent message in the outbox. You can always drag it to a drafts folder if you want to make some changes before trying to send it again.

I have tried to drag my outbox messages into my draft folder.  Won't work.  Tell me what to do next.

Actually I really want to delete the messages so they quit going.  They just keep going to e-mail address over and over every hour. 

Because your question is different from the one that started the thread you posted in, I've moved yours to its own thread