See if the info here helps:
http://www.howto-outlook.com/Faq/mes...ckinoutbox.htm

"mr_networking" wrote in message
news
I tried to send video clip via email and it went to my outbox to send
because
of large file size and it wont send. I also can't delete it. All other
emails
I try to send go to my outbox. Help! Thanks...