I constantly get spam from bluestatedigital, a digital fundraising
company for political causes. They seem to be entirely bulletproof.
I have consistently been getting spam from them since 2009. Complaints do
not seem to be investigated. Just block them at the router and be done with it. It's not worth your time to fight with bozos, just block them hard and fast.
"C'est un Nagra. C'est suisse, et tres, tres precis."