You don't send an email to the spammers you twerps - You send it to the companies whose products they are advertising.

As JohninKansas says   ...NEC, Samsung, and Hitachi are all reputable companies who DO NOT SEND SPAM...

But they are benefitting because the spammers are selling their products.

If ENOUGH people emailed THEM at their customer support sites and complained, they might get the message and see that their sellers did not engage in posting spam.

But as Jon says ...I'm not sure it would do one ounce of good... because not enough people care to get involved.