Ah the 'failed mail' scam. In an answer - you've not sent these emails. It's spam sent to make it look like you've tried to send emails. You're then meant to open them to have a look and see what they are and hey presto - you're caught. The only thing to do is just delete them, or if using outlook start adding them to junk email senders.
pcdocmail@talktalk.net, February 2007
