A client of mine is interested in sending MMS messages to people who text a keyword to the short-code.
He is not interested in getting an audience to opt-in to a distribution list. He is simply interested in being able to deliver an MMS in response to a request from the audience.
The implication here is that there is no need for a message telling the client how to opt out or telling them that they will receive X amount of messages per month.
We want to simply deliver a one-time MMS in response to a request.
Do you know which providers we could get this from?