I sent an email on a website asking for a confirmation of my order, then got a failure on windows live mail that it wasn't compatible or something like that. Now every time I close my email I get a failure message that a task is not complete. I do not see any way to just delete that whole mess or any way to get that message to stop.It looks like its going to try and send that email forever and fail. Is there anything I can do?

I also use Windows Live Mail. Look in your Drafts or Outbox folders. Is the email there? If so, you can delete it from there.

See if anything here helps
https://www.lifewire.com/how-to-delete-emails-stuck-in-windows-live-mail-outbox-1172614

That worked Draclvr! Thanks! I didn't even get to Jenny100 hint.

Great! I've had it happen to me too.