On May 9, 2016, at 9:45 AM, paul_koning at 
dell.com
wrote:
 
 
  On May 9, 2016, at 4:36 AM, Johnny Billquist
<bqt at softjar.se> wrote:
 
 Nope, you should not. Someone got hacked, or got a virus or something. HECnet only allows
posts from subscribed members... 
 
 Not necessarily; that depends on how thorough the list server is.  A substantial fraction
of this sort of criminal email has forged sender addresses.  I occasionally get bounce
messages sent to me in response to forgeries that clearly (from their forwarding headers)
did not originate on my system, or even in my country. 
I just looked at the headers of the offending message: it certainly looks like a forged
source address.  It is not entirely clear which of the forwarding headers are real, but
possibly an ISP in Sweden is part of the path.  Open relay somewhere?
	paul