Use the fix that is posted in this forum several dozen times each day:
http://support.microsoft.com/default.aspx/kb/941090
--
Gary VanderMolen [MS-MVP WLM]
"daleandmar" wrote in message news

Mikeskoda,
I am having the same problem. Did you find a fix?
daleandmar
"mikeskoda" wrote:
I have a message stuck in my outbox that cannot be moved or deleted.Now when
I open windows mail it brings up a pop up saying you have one or more
messages in your outbox do not have a valid account specified would you like
to use your default account to send these messages ?I have to click no then
its starts send and receive
I have spoken to my ISP provider they cannot help.Help please its very
annoying and its slowing up the e-mail opperation