Received via email:

Hello,
First, Very Sorry for my bad English.

Someone is sending your private e-mails on my address. It's probably an e-mail provider error! At time, I've got over 10 mails on my account, but the recipient are you.

I have copied all the mail text in the windows text-editor for you & zipped then. Make sure, that this mails don't come in my mail-box again.

Uh huh. While I've had similar situations (like ijits sending email to an unqualified subdomain of their domain which is the same name as my domain), I don't think this is for real. Especially since the to address is not to me but to another domain and I'm on the CC or BCC list.

UPDATE: Snopes links (snopes . com/computer/virus/gotemail.asp) to the Symantec page describing this as the W32.Sober.N@mm (securityresponse . symantec . com/avcenter/venc/data/w32.sober.n@mm.html) worm.