What should I do if my Toll-Free number is blocked for spam?

[Meredith_W]

Please open a ticket with Sinch support team if you believe an unwarranted block has been placed on your traffic. If the number is verified, please share this information with Sinch support for quicker resolution. If the number is not verified, it is important at that time to submit a Verified Sender Form, in order to prevent the number from experiencing false positive blocking in the future, or recurrence of deliverability issues. 

Learn more about Toll-Free Numbers from Sinch.

[#2]

Unverified toll-free numbers (TFNs) and Pending Verification toll-free numbers (TFNs) are subject to industry-wide message blocking. Unverified toll-free numbers are TFNs that have not completed the toll-free sender verification process. Pending Verification toll-free numbers are TFNs where a verification request has been submitted, but the request is pending review and approval. 

Note: In the past it was possible to send messages from an Unverified TFN or Pending Verification TFN. However, as a result of industry-wide changes, all toll-free numbers, regardless of the use case, must be Verified to originate traffic.

UNVERIFIED toll-free numbers (TFNs) are subject to industry-wide message blocking, effective November 8, 2023.

PENDING VERIFICATION toll-free numbers (TFNs) are subject to industry-wide message blocking, effective January 31, 2024.

All toll-free numbers (TFNs) must be in a VERIFIED state in order to originate traffic.

Unverified TFNs and TFNs pending verification will be blocked with Sinch error code 64 “Blocked due to exceeded quota”. Please see Toll-Free Delivery Report Errors for a full list of Sinch Toll-Free error codes.