Your regular ISP may look at it as Unsolicited advertising.
Nobody has time read through long mail messages. A common mistake shops tend even worse is believing that 1 or 2 is plenty - which incorrect. You will be able to tell the area of your list that has become your emails to all. http://www.chairgear.com/__media__/js/netsoltrademark.php?d=Launchhappy.co%2Fguides%2Fsquarespace-email-campaign-pricing-features-explained