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Yes, completing a Verified Sender Form provides a simple layer of verification for your Toll-Free messaging campaign and with this verification it provides better deliverability than if you didn’t have a form on file.


Keep in mind that TFNs that are unverified (or have not yet been submitted for verification) are subject to the highest amount of filtering applied to their traffic. TFNs in an unverified state will automatically get shut off if any spam or unwanted traffic is detected.


Additionally, effective October 1, 2022, unverified Toll-Free numbers (TFNs) are subject to new industry-wide U.S. messaging limits per TFN, listed below: 


  • Daily Limit: 2,000 messages per day per unverified TFN 
  • Weekly Limit: 12,000 messages per week per unverified TFN 
  • Monthly Limit: 25,000 messages per month per unverified TFN 

Verification is required for all Toll-Free numbers when sending to Canada. Beginning October 1, 2022, unverified traffic towards Canadian destination numbers is blocked.


All messages, regardless of being successful or not, count toward the daily, weekly, and monthly volume thresholds. 


Once a TFN has been submitted and is pending verification, all of the above restrictions no longer apply.


Learn more about Toll-Free Numbers from Sinch.

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Last update:
‎01-04-2023 06:01 AM
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