Built to keep messages, customers and carriers safe.
Lynsms is a legitimate communications platform with active moderation, sender verification and automatic protections. This page documents the policies, technical controls and processes that apply to every account.
Sender accountability
Every sender is identified, verified and bound to an approved set of message types and destinations.
Automated controls
Rate limits, velocity monitoring, spam filtering and link scanning are enforced before traffic leaves our network.
Human review
Edge cases, new senders and risk-flagged campaigns are routed to a moderation queue staffed by humans.
Acceptable traffic
Lynsms supports a clear set of legitimate use cases. Anything outside these categories requires explicit pre-approval.
Allowed
- OTP and 2FA — one-time passwords and authentication codes.
- Transactional alerts — order, shipping, payment and account updates.
- Service notifications — appointment reminders, support follow-ups, ticket updates.
- Consented marketing — opt-in campaigns with documented consent and opt-out.
Prohibited
- Unsolicited bulk SMS without verifiable consent or opt-out.
- Phishing, smishing and social engineering impersonating banks, carriers or platforms.
- Illegal goods or services including unregulated finance, gambling or pharmaceuticals.
- Hate speech, harassment or fraud of any kind.
Automatic protections
Every outbound message is evaluated by a chain of automated checks. Traffic that fails the checks is rejected, queued for review or rate-limited before it reaches a carrier.
- Rate limiting — per-account and per-sender ceilings that scale with verified trust.
- Duplicate detection — identical payloads sent in short windows are deduplicated automatically.
- Link scanning — shortened, newly registered, and known-malicious URLs are flagged or blocked.
- Spam keyword monitoring — pattern matching against known phishing and abuse vocabulary.
- Velocity monitoring — unusual sending bursts trigger automatic throttling and human review.
- Country restrictions — geofences for destinations that prohibit specific message categories.
- Fraud scoring — behavioral models score each campaign against patterns we've seen abused before.
Sender approval workflow
Sender IDs and short codes are reviewed before they go live. The process is transparent and observable from the console.
Submit
Provide your sender ID, traffic category, sample messages and destination countries.
Verify business
Share business registration, website and use case documentation. KYC where required by carriers.
Compliance review
Our team validates the campaign type, consent and content against carrier and regional rules.
Approval & tracking
Approved senders are registered with carriers; status is visible in the dashboard at every step.
Account trust and limits
New accounts begin with conservative limits. Capacity unlocks as we observe consistent, legitimate traffic.
| Tier | Daily volume | OTP traffic | Marketing traffic | Notes |
|---|---|---|---|---|
| New | Up to 1,000 | Permitted | Conservative | Default limits for unverified accounts |
| Verified | Up to 50,000 | Standard routes | Standard routes | Business KYC completed |
| Trusted | Custom | Priority routes | Priority routes | Consistent traffic, low complaint rate |
| Enterprise | Custom & dedicated | Dedicated routes | Dedicated routes | Custom SLA, dedicated short codes |
Reporting abuse
If you've received an SMS from a Lynsms-routed number that you believe is fraudulent or unsolicited, please report it. Every report is reviewed by our compliance team.
Email [email protected] with the message content, sender ID and approximate time received. Include screenshots if available. We acknowledge reports within one business day.
Building responsible messaging together.
Read the full policies, or talk to our compliance team about your use case before launching.