Here is a 1-paragraph summary of the text: Twilio offers various solutions for sending bulk SMS without hitting rate limits and efficiently dealing with error codes, applicable to different programming languages such as Python, JavaScript, Java, PHP, and .NET. Developers can utilize task queues, open-source tools, and Twilio's Messaging Services to send messages asynchronously and prevent being flagged as spam. The article provides examples of how to implement these solutions in various programming languages, including articles on using task queues with RQ, Redis, Python; Node.js; Java; PHP; and .NET. It also highlights the importance of implementing task queues and using open-source tools to solve problems and create innovative projects.