Troubleshooting

• Are delivery receipts available for international destinations?
• Can I get Delivery Receipts for MMS messages?
• Delivery Receipt (DLR) FAQs
• Does Bandwidth retry HTTP messaging callbacks if my callback URL isn't reachable?
• How can I investigate my Bandwidth messages using Search & Logs?
• How can I tell if my messages are being blocked?
• How do I enable MMS Delivery Receipts when sending messages?
• How do I use Message Logs?
• How to use the Messaging Insights dashboards
• Is delivery 100% guaranteed?
• Message Detail Record field descriptions
• MM4 error codes
• Requesting MMS Delivery Receipts for MM4 users
• SMPP SMS Delivery Receipts and Error Codes
• What do I need to do to ensure my messages don’t get blocked?
• What should I do if my messages are being blocked?
• Why can't I send or receive messages from an iPhone?
• Why did I not receive a 2FA message on my Bandwidth number?