I just received another e-mail from Brook, from the company that shall remain unnamed (I'm nice) informing me that she is still running the promotion I might be interested in. No, I was not interested. Brook was a busy gal, sending me 2-3 e-mails a day, all without an opt-out notice or even an unsubscribe link. Somehow she was avoiding my spam filters, blissfully unaware of CAN-SPAM Act.
The CAN-SPAM Act establishes requirements for commercial messages, gives recipients the right to have you stop emailing them, and spells out tough penalties for violations. Each separate email in violation of the CAN-SPAM Act is subject to penalties of up to $41,484, so non-compliance can be costly. You can find FTC guide on CAN SPAM compliance here.
If you send "cold" e-mails, make sure you comply with the opt-out requirements. I was nice enough to inform Brook of CAN-SPAM Act, but you may run into somebody who is not as nice.
If you are on the receiving end of these annoyingly cheerful e-mails, and not inclined to be nice, you can file your complaint with FTC at email@example.com. Be sure to include the complete spam email.