SMS API

How to Fix “MMS Not Sending” in Twilio (2026 Guide) The Short Answer To fix the “MMS Not Sending” issue in Twilio, advanced users can directly verify that the Media URL is correctly formatted and accessible, ensuring it meets Twilio’s requirements for MMS messaging. By checking the Media URL and adjusting the SMS API settings, users can resolve the issue and successfully send MMS messages. Why This Error Happens Reason 1: The most common cause of the “MMS Not Sending” error is an incorrectly formatted or inaccessible Media URL, which prevents Twilio from retrieving the media content required for MMS messaging. According to Twilio’s documentation, a valid Media URL must be publicly accessible and have a valid MIME type. Reason 2: An edge case cause of this error is a misconfigured SMS API setting, such as an incorrect account SID or auth token, which can prevent Twilio from authenticating and sending MMS messages. For example, if the account SID is incorrect, Twilio will return a 404 error, indicating that the account does not exist. Impact: The “MMS Not Sending” error can significantly impact businesses that rely on MMS messaging for customer engagement, resulting in delayed or lost messages, and potentially affecting customer satisfaction. In a real-world scenario, a company like Uber, which uses Twilio for customer notifications, may experience a significant increase in support requests if MMS messages are not delivered promptly. Step-by-Step Solutions Method 1: The Quick Fix Go to Settings > Messaging > MMS and verify that the Media URL is correctly formatted and accessible. Toggle the MMS Converter option to Off, as this feature can sometimes cause issues with Media URLs. Refresh the page to apply the changes and test MMS messaging again. Method 2: The Command Line/Advanced Fix For advanced users, you can use the Twilio CLI to update the Media URL and SMS API settings. Run the following command: ...

Plivo vs Twilio: Which is Better for SMS API? Quick Verdict For small to medium-sized teams with limited budgets, Plivo is a more cost-effective option for SMS API, offering competitive pricing and a simpler setup process. However, larger enterprises with complex integration requirements may prefer Twilio’s more extensive feature set and robust support. Ultimately, the choice between Plivo and Twilio depends on your team’s specific needs and budget. Feature Comparison Table Feature Category Plivo Twilio Winner Pricing Model Pay-as-you-go, $0.005 per message Pay-as-you-go, $0.0075 per message Plivo Learning Curve Simple API documentation, 1-2 hours to set up Extensive documentation, 2-5 hours to set up Plivo Integrations 100+ pre-built integrations 500+ pre-built integrations Twilio Scalability Handles up to 10,000 messages per second Handles up to 100,000 messages per second Twilio Support 24/7 email and phone support 24/7 phone, email, and chat support Twilio SMS API Features Supports SMS, MMS, and toll-free numbers Supports SMS, MMS, and toll-free numbers, with advanced features like message queuing Twilio When to Choose Plivo If you’re a 10-person startup with a limited budget and simple SMS API requirements, Plivo’s cost-effective pricing and easy setup make it an ideal choice. If you need to send a low volume of messages (less than 1,000 per day), Plivo’s pay-as-you-go model can help you save money. If you’re looking for a simple, straightforward SMS API solution with minimal setup and maintenance, Plivo is a good option. For example, if you’re a 50-person SaaS company needing to send automated password reset messages to your users, Plivo’s pricing and simplicity make it a suitable choice. When to Choose Twilio If you’re a large enterprise with complex integration requirements and a high volume of messages (over 10,000 per day), Twilio’s extensive feature set and robust support make it a better fit. If you need advanced SMS API features like message queuing, Twilio’s platform provides more comprehensive functionality. If you have a large team with diverse technical expertise and can take advantage of Twilio’s extensive documentation and support resources, Twilio is a good choice. For instance, if you’re a 500-person e-commerce company needing to send personalized marketing messages to your customers, Twilio’s advanced features and scalability make it a more suitable option. Real-World Use Case: SMS API Let’s consider a scenario where a company needs to send automated appointment reminders to its customers via SMS. With Plivo, setting up the SMS API would take around 1-2 hours, and the ongoing maintenance burden would be relatively low. The cost breakdown for 100 users would be approximately $5 per month (100 messages * $0.005 per message). With Twilio, the setup process would take around 2-5 hours, and the cost breakdown for 100 users would be approximately $7.50 per month (100 messages * $0.0075 per message). Common gotchas to watch out for include ensuring proper message formatting and handling errors. ...

Twilio vs MessageBird: Which is Better for SMS API? Quick Verdict For small to medium-sized businesses with a budget under $10,000 per month, MessageBird is a more cost-effective option with similar features to Twilio. However, for larger enterprises with complex SMS API requirements, Twilio’s scalability and support make it a better choice. Ultimately, the decision depends on your team size, budget, and specific use case. Feature Comparison Table Feature Category Twilio MessageBird Winner Pricing Model Pay-per-message ($0.0075 per SMS) Pay-per-message ($0.004 per SMS) MessageBird Learning Curve Steep (requires programming knowledge) Moderate (user-friendly interface) MessageBird Integrations 50+ pre-built integrations 20+ pre-built integrations Twilio Scalability High (supports 100,000+ concurrent messages) High (supports 50,000+ concurrent messages) Twilio Support 24/7 phone and email support 24/7 email and chat support Twilio SMS API Features Supports 2-way messaging, SMS shortcodes Supports 2-way messaging, SMS shortcodes Tie When to Choose Twilio If you’re a 100-person enterprise with a large development team and complex SMS API requirements, Twilio’s scalability and support make it a better choice. If you need to integrate your SMS API with a large number of third-party services, Twilio’s 50+ pre-built integrations make it a better option. If you’re a 50-person SaaS company needing to send 10,000+ SMS messages per day, Twilio’s high scalability and reliable delivery make it a better choice. If you have a large budget ($50,000+ per month) and need customized SMS API solutions, Twilio’s dedicated support team can provide tailored solutions. When to Choose MessageBird If you’re a 10-person startup with a limited budget ($1,000 per month) and simple SMS API requirements, MessageBird’s cost-effective pricing and user-friendly interface make it a better choice. If you need to send SMS messages to a large number of international destinations, MessageBird’s global coverage and competitive pricing make it a better option. If you’re a 20-person e-commerce company needing to send 1,000+ SMS messages per day, MessageBird’s moderate scalability and reliable delivery make it a better choice. If you have a small development team and need a simple, easy-to-use SMS API, MessageBird’s intuitive interface and moderate learning curve make it a better choice. Real-World Use Case: SMS API Let’s say you’re a 50-person SaaS company that needs to send 5,000 SMS messages per day to customers in the United States and Europe. With Twilio, setup complexity would take around 2-3 days, and ongoing maintenance burden would be moderate (2-3 hours per week). The cost breakdown would be: ...