Sending Long MMS Text Messages by Twilio involves understanding the limitations of SMS messages, which have a 160-character limit, and leveraging MMS messages for longer content. Businesses can benefit from sending long texts to nurture customer relationships through multiple touchpoints, real-time conversations, creative elements, and increased customer satisfaction. To get started, segment contacts, write engaging MMS messages with personalized details and brand voice, and use a powerful messaging platform like Twilio's MessagingX that prioritizes deliverability and security.