Remember than most E-mail services have a limit to the total size of the E-mail, including attachments. It is always wise to check the size of your E-mail to be sure it is around 75 percent of the allowed limit.
Use Windows Explorer to find the Outlook folder containing the mail folders, and delete the outbox folder; Outlook will recreate the folder when you next launch it, but without the offending E-mail. this information may help you locate the .pst file you need:
http://www.informit.com/articles/article.a...102029&rl=1Regards,
John