http://www.howto-outlook.com/faq/mes...ckinoutbox.htm should be helpful.
"Connie" <(E-Mail Removed)> wrote in message
news

136527C-3A5C-424C-9834-(E-Mail Removed)...
>I tried to send an email with 2 photos attached last Friday around 10: AM.
> It is still in my outbox today (Monday). I can't delete it and keep
> getting
> a message that says that it's because it has already started sending.
> It's
> been more than 3 days!
> I've shut down my email, shut down my computer and even restored to the
> day
> before. It is still there sending. As a result, all other outgoing
> messages are waiting too.