From the heading, here is the name of the server that actually sent the messages :
service.govdelivery.com ([10.10.20.242])
The IP address is no longer traceable by iptrace.
Whois shows it has been returned back IANA.
I can also add that the healthcare message was the third unsolicited e0mail from the WH. The first was on Porkulus. The second on Sotomayor.
The address I received them at is my personal e-mail associated with my ISP. To get that address, they either had to buy it from someone that had it or gotten it from my ISP. I have never sent anything to any government agency using that ID and certainly made no contributions to O’s campaign.