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Introduction

This article will help you troubleshoot the error message 30006, which doesn't allow you to send texts. 

Error Code 30007

If you are seeing an error code 30007 (Message Delivery - Carrier Violation) this indicates that messages are being filtered by Twilio, or the carriers (AT&T, T-Mobile, Verizon).

• The way it works is that there is an algorithm that essentially predicts whether your messages are considered spam or not.

Solution

• The algorithm is not perfect sometimes it ends up blocking legitimate messages. 
• Sometimes you have to give it a minute or so before trying again, sometimes you have to reword the message, sometimes if you're sending the messages and an image together, you might need to try sending them separately.
• These articles have more information on this issue.
  • Error 30007
    https://www.twilio.com/docs/api/errors/30007#:~:text=Your%20message%20was%20filtered%20(blocked,spam%2C%20phishing%2C%20and%20fraud.
  • Acceptable Use Policy
    https://www.twilio.com/en-us/legal/aup
  • Twilio Messaging Policy
    https://www.twilio.com/en-us/legal/messaging-policy
  • How do I prevent my Twilio messages from being filtered (blocked)? 
    https://support.twilio.com/hc/en-us/articles/1260803966670-How-do-I-prevent-my-Twilio-messages-from-being-filtered-blocked-
  • How Does Message Filtering Work?
    https://support.twilio.com/hc/en-us/articles/223181848-How-Does-Message-Filtering-Work-

Conclusion

In conclusion, error code 30007 can prevent text sending. By following the steps found in that article, you can identify and resolve the issue's cause effectively, ensuring smooth text transmission.