AllowKeep trusted users moving without extra friction.
smtpRS | EMAIL RISK INTELLIGENCE
Available now
smtpRS Email Validation & Risk Scoring API
Free preview
Public demoModel: Lite
Validate a real email address using public sender, domain, mail, authentication, disposable-email, and related risk signals. Run the public preview without an account to receive a clear result, a mail-capability check, and a transparent breakdown of what could and could not be verified.
No account required
Public signals only
Result stays visible beside its evidence
Operational decision
A compact result your product can use immediately.
smtpRS combines public email signals into a compact risk result that can be routed directly into signup, intake, CRM, vendor, or abuse-prevention workflows.
ReviewSend ambiguous cases to the right team with context.
RejectStop clear disposable or suspicious identities earlier.
From signals to decision
See how smtpRS turns public signals into a usable decision.
Follow the documented flow from email submission through validation and risk analysis to a structured allow, review, or reject recommendation.
Public signal collection Normalized risk analysis Structured decision guidance
LIVE
SYSTEM STATUS |
AllowTrusted signal pattern
ReviewAmbiguous or incomplete
RejectStrong risk indicators
Request to decision
A consistent path from email input to governed action.
smtpRS validates email structure and evaluates sender, domain, mail, and authentication signals before Paravane's proprietary machine-learning model contributes to risk analysis and scoring. The returned decision remains an input to your own product policy.
Submit
Send an email address to the analysis endpoint with your API key.
Analyse
Validate email structure and evaluate sender identity, domain reputation, mail capability, authentication, and risk patterns.
Decide
Return an allow, review, or reject decision with normalized risk context.
Route
Apply your own policy in signup, CRM, intake, or review workflows.
Developer experience
A clear contract for the first integration—and the hundredth.
Add smtpRS with one endpoint. The response keeps the risk score, decision, model context, and usage information together so your application can act without translating a dashboard.
- REST API with API-key authentication
- Summary and entitled full-response profiles
- Plan-aware credit and usage context
- Customer-controlled business logic
LIVE
SYSTEM STATUS |
Example summary responseapplication/json
{
"overall_risk": 2,
"decision": "allow",
"tier": "BASIC",
"analysis_profile": "full",
"credit_cost": 3,
"response_profile": "summary",
"usage": {
"remaining": 9979,
"window": "calendar_month_utc"
}
}Where it fits
Use the signal wherever identity risk enters the workflow.
Call the smtpRS email validation and risk API from the flow you already own. Use its sender, domain, mail, and authentication intelligence alongside message, device, network, and behavior controls when reviewing phishing or business email compromise risk.
Account signup
Validate email inputs and stop risky signups before creating access, trials, or API keys.
Lead intake
Filter disposable and low-quality submissions before they reach sales.
Vendor onboarding
Add a consistent email risk signal to every third-party review.
Abuse prevention
Combine email risk with device, network, and behavior signals.
Operational control
Risk intelligence without giving up policy authority.
smtpRS returns a compact opinion and supporting context. Your application, policy, and team still decide what happens next.
No replacement platform
Use the API inside the signup, intake, CRM, or review path you already operate.
Decision and context together
Keep the normalized risk result, response profile, and usage context in one payload.
Final policy stays yours
Use allow, review, or reject as input to your own thresholds, exceptions, and human review.
Official Python SDK
Take smtpRS from first request to production integration.
Use Paravane's maintained Python client for typed responses, structured errors, configurable timeouts, safe retries, and access to the complete smtpRS payload.
Install from PyPIParavane for Python
python -m pip install --upgrade paravane
First analysis Python
from paravane import ParavaneClient
client = ParavaneClient()
result = client.smtprs.analyze("user@example.com")
print(result.decision)
print(result.overall_risk)Get started
Put email validation and risk intelligence into production.
Begin with evaluation credits, then select the analysis depth and capacity that match your operating volume.