30007 is a carrier-side error that indicates your message was filtered due to content, sender identity, or compliance reasons.
This happens when a message:
Violates a carrier’s messaging policy.
Appears similar to spam or illegal traffic.
Is missing required compliance elements, like opt-in consent or sender identification.
These filters are enforced to protect consumers, comply with national regulations (like A2P 10DLC in the U.S.), and maintain platform trust.
Below are structured guidelines based on carrier requirements, and industry best practices.
Only message users who’ve explicitly opted in.
Your message must identify the sender and include opt-out instructions.
You must include STOP language at least once every 30 days if you message the same contact regularly.
Avoid creative variations like “Reply 2 to unsubscribe” – these are non-compliant and will be filtered.
Reconfirm opt-in every 18 months to avoid accidental messaging of recycled numbers.
Monitor opt-out rates and complaint spikes, carriers will begin filtering traffic that shows abuse patterns.
Avoid forbidden use cases, such as payday loans, debt relief, cannabis, etc.
Do not “snowshoe” across multiple numbers to evade filtering – use numbers based on geography or business units only.
Use pre-registered short codes or Alphanumeric Sender IDs where required, especially for countries like France.
Refer to SMS Guidelines by Country for local rules.
Avoid public URL shorteners (like Bitly, TinyURL). Use branded domains like (yourbusiness.com/offer).
Never use obfuscated links or suspicious redirects.
Use clear, well-written language and avoid,
Emojis, excessive punctuation, or CAPS.
Misspellings or poor grammar.
Do not send illegal or misleading content, or anything listed in the Forbidden Categories link above.
Your SMS must:
Contain STOP instructions (at least monthly).
Clearly name the sender.
Be sent only to users who gave explicit permission.
Process DND (Do Not Disturb) requests daily – deactivated numbers are no longer valid recipients.
A message triggering 30007 can mark a contact as DND automatically.
