An e-mail message that wont be deleted

[loggy01]

My husband's laptop has a message in the outbox from 2007 which wont be deleted and wont be moved to the deleted items folder, the computer tries to do this but comes up with "an unknown error has occurred". When other messages are sent the computer says "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?" but when you say yes the message still remains in the outbox - and has done since 2007!!! How very baffling and annoying!! Any suggestions to clear this problem.

[Zen]

http://www.howto-outlook.com/faq/messagestucki noutbox.htm