BOI labels itself a spammer

Thailand's Board of Investment (http://www.boi.go.th/), a government agency charged with attracting foreign investment, sends out a monthly newsletter, the latest issue of which has just arrived (in the middle of February) with the subject:

[Probably SPAM] - BOI E-Newsletter - January 2007

Looking at the headers, it looks like their own mailserver (running Microsoft Exchange) is responsible for this...