Those webcam pr0n emails have been doing the rounds for more than a year.
I received a couple and they piqued my interest because they had spoofed the headers quite craftily. I've debugged loads of sendmail problems so a quick browse back through the header trail revealed that the perps had actually spent some time on this. For example, choosing spoofed but genuine headers with matching ip addresses that fooled intervening mail relays.
I traced the original messages to unsecured mail servers at a TV station in Serbia and a poorly configured department server at a uni in Brazil but there must be thousands of others out there.
I don't know if I've received any since then because anything similar just goes straight in the bit bucket.
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