InboxIssue

API Reference

InboxIssue REST API documentation

API Reference

Programmatically test email deliverability with the InboxIssue API.

API access is available on Pro and Enterprise plans.

API Endpoints

InboxIssue provides two APIs for different use cases:

Spam Tests API

Core deliverability testing for InboxIssue users. Results are viewed on shareable reports.

External Tests API

Simplified API for third-party integrations. Best used with webhooks for real-time notifications.

Which API Should I Use?

Use CaseRecommended API
Running tests from your own applicationSpam Tests API
Viewing results on shareable reportsSpam Tests API
CI/CD pipeline integrationSpam Tests API
Third-party app integration (DMARC Reporter, etc.)External Tests API
Real-time webhook notificationsExternal Tests API
White-label integrationsExternal Tests API

Reference

Authentication

API tokens and authentication

Error Handling

Error codes and best practices

Code Examples

SDK examples for Python, JavaScript, Ruby

Base URL

https://app.inboxissue.com/api/v1

Quick Example

curl -X POST "https://app.inboxissue.com/api/v1/spam_tests" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"spam_test": {"name": "My Test"}}'

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