and wondering if this is another "This message is compliant with house bill <some#>" BS or if it is serious.
Can-spam is a real federal US law.. it more-or-less says you can spam if you
include a physical address and a removal mechanism
don't use a misleading subject
don't forge delivery headershttp://www.spamlaws.com/federal/108s877.html
However, odds are very high that any email claiming can-spam compliance will only meet the requirements in appearance, but the remove mechanism will not work and the contact address is likely a road to nowhere.
