Problem with supposedly bounced emails I've never sent.

[canetoad]

9. Another possibility

Is that someone, who has your email addy in their address book has a mailer worm.

How these things work is they install themselves through an infected attachement, setting up their own SMTP engine. Then they trawl the infected computer for email addresses and wham! Away they go.

I was once able to identify an worm on an acquaintances computer; this particular worm searched for email address and also copied random chunks of text from the user's files and pasted them in the body of the emails it sent. Luckily I recognised some of the text and from whom it was copied.

If this is the case, just keep deleting them and hope that the infected computer's owner eventually figures it out.