Regardless of what the law says (and CAN-SPAM is a joke if you ask me), what matters most IMO is what your prospects perceive your email to be. Is it a friendly contact that might provide me with some useful, valuable information - or is it a sale pitch for your services?

You can follow the letter of the law and convince yourself that what you're sending is "legal" - but if I see it as just another intrusion I have to deal with, all focused on you and what you do blah blah blah, your message will be deleted in a millisecond and you're ruined any chance of ever doing business with me again.

Now, if you send me an email with an offer to help with a problem I have, maybe send me a free whitepaper on something that interests me, then I might consider your message and take a look at your offer.

Steve