my family business deals with hundreds of people a year for specialized services. we collect emails and cell numbers and address at the time of scheduling the service. we are old school and the information is hand written on a file. i want to start sms marketing to the cell numbers i collected over the past two years, but i want to be compliant with any and all legalities that come with SMS.
in theory, if i sign up with a platform, and upload my contact list, and blast a txt message asking them to reply YES to opt in to receive more messages in the future or reply NO to be removed from the system, would that be acceptable?