Welcome to InboxIssue
Learn how to test email deliverability and ensure your emails reach the inbox.
Welcome to InboxIssue
InboxIssue is an email deliverability testing platform. It helps you ensure your emails reach recipients' inboxes rather than spam folders by:
- Testing email delivery across multiple providers (Gmail, Outlook, Yahoo, and more)
- Analyzing email headers for spam triggers and reputation signals
- Integrating with tools like Slack and custom webhooks
- Providing detailed insights including Microsoft SCL/BCL scores and Gmail spam analysis
Quick Links
Quick Start
Get up and running with InboxIssue in 5 minutes
Run Your First Test
Create and understand your first spam test
Slack Integration
Run tests directly from Slack
API Reference
Integrate InboxIssue with your applications
How It Works
- Create a Test - Start a new spam test from the dashboard, API, or Slack
- Send Your Email - Send your test email to the provided test addresses
- Get Results - InboxIssue checks each provider and reports delivery status
- Analyze & Improve - Review authentication, spam scores, and header analysis
Provider Coverage
InboxIssue tests delivery across major email providers:
| Category | Providers |
|---|---|
| Consumer | Gmail, Yahoo, AOL, Outlook.com, iCloud |
| Business | Office 365, Google Workspace, Exchange |
| Protected | Mimecast, Proofpoint, Barracuda |
Getting Help
- Documentation - You're here! Browse the sidebar for detailed guides
- Support - Contact support@inboxissue.com
- App - Access the dashboard at app.inboxissue.com