The Brazil division of US-based retailing giant Walmart is spamming purchased or email appended lists from Microsoft’s CloudApp service. Walmart Brazil (as opposed to Walmart itself) has a long record of spamming dirty purchased lists. Walmart has dropped the ball enforcing minimally acceptable email marketing standards on its badly-behaved subsidiary.
Microsoft’s Finland office keeps spamming outdated and erroneous addresses at the atro.fi domain. The ESP is ExactTarget. I’ve told Microsoft in September 2010 (to the explicitly named feedback address in that message), and tried again in February 2011 (to postmaster and abuse at one of their domains registered for a specific event; neither existed). Duh. Perhaps the ESP can lend a helping hand.