Check email deliverability API
/email_ping
Tests the deliverability of one or more supplied email addresses.
Example Request
GETRequest Schema
emails
One or more comma-separated email addresses.
Available Response Data
4 Data PointsBatch Processing Status
Array of Analysed Emails
Deliverability Result Codes
Deliverable, Undeliverable, Undetermined
Safe-To-Send Flags
API Data Scale & Coverage tag
Unmatched data depth to power your compliance and verification workflows.
Technical Use Cases tag
Sender Reputation Protection
Automatically ping emails at the point of sign-up to block disposable domains and hard-bounces, protecting your domain's sending score.
Database Hygiene
Scrub stale marketing lists prior to massive campaign deployments to ensure maximum inbox placement.
Webhooks & Events tag
Synchronous
SMTP verification
Compliance & Security tag
Enterprise-grade infrastructure audited against the standards your regulators require.
Common Questions tag
Everything you need to know about implementation details and compliance infrastructure.
help_center General
Does this send an actual email to the user?
add
Does this send an actual email to the user?
No, this performs a deep-level SMTP handshake and syntax check to verify the inbox exists, without ever sending a visible message to the user.
API Testing Sandbox tag
Test the Check email deliverability API directly in your browser with live mock data and see instant results.
rocket_launch Request Sandbox AccessAccess to live sandbox environments requires manual approval from our compliance team.