Commercial text blasting is as legal as working a regular 9 to 5 job or running for President. The problem is the approach business adopt toward it. With the wrong one, cold SMSes or text blasting subscribers without their permission will land you in as much trouble as will cold emails & the hammer of GDPR. It is crucial that you have all of your prospects opt-in (or subscribe) before you send them business texts. It is equally important that you provide an option for any disinterested subscribers to opt out easily in every SMS. Sender is fully TCPA (Telephone Consumer Protection Act) compliant. Your subscribers are able to opt out by texting STOP or any other keyword you choose in your settings.