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

Any update on your issue Francisca? Jonas Andersson | Microsoft Community Contributor Award 2011 | MCITP: EMA 2007/2010 | Blog: http://www.testlabs.se/blog | Follow me on twitter: jonand82

Hi Francisca57, You can follow this document to have a try: Help – I tried to send a giant attachment and it’s stuck in the Outbox! http://blogs.office.com/b/microsoft-outlook/archive/2008/05/01/help-i-tried-to-send-a-giant-attachment-and-it-s-stuck-in-the-outbox.aspx Thanks, Evan

yes, my problem was solved. I had tried a few times to delete the file by going offline, it hadn't worked and all of a sudden it worked. So the trick is to keep trying till it works because it might not work the first time around!