Just like email, sending bulk SMS for real estate marketing purposes is an opt-in-only activity. That means that the recipients have to give prior consent to receive marketing text  blasts. There are a few simple ways to build SMS into your real estate digital and mobile marketing processes: Embed a sign-up form on your website, share a link to a sign-up form in an email, allow prospective clients to subscribe via a Keyword and textable number, or have the lead initiate a text conversation with your textable number.