Reporting Spam to csa-complaints@eco.de

[Kirk Ismay]

I've got a lot of finance / political spam that is passing through all 
filters because it's DKIM signed and using an email provider 
(salesforce.com & others).   One thing they do include is a 
X-CSA-Complaints: csa-complai...@eco.de header, which looks legit.

Has anyone had success with reporting mail to this address?  Does it get 
results?

Thanks in advance,

Kirk