I have one e-mail, quite heavy one, stuck in the Outbox of the Outlook 2007 for quite a few days already. I can't open it to delete it because I get the message: "Outlook has already begun transmitting this message". It does send other messages. What can I do to get rid of it? I don't need to send it anymore but it slows down the Outlook.

Hi, Try to set Outlook in offline mode (or disconnect the network) and see if you can then delete the mail Leif

Close Outlook, go in via OWA and delete the message.Sukh