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Email Testing

Hooklistener provides inbound email testing through hookinbox.com. Create test inboxes that capture emails, inspect their content, and optionally forward them to HTTP endpoints for integration testing.

How it works​

  1. Create an inbox — get a unique email address at @hookinbox.com
  2. Send emails to it — from your app, transactional email service, or mail client
  3. Inspect captured emails — view subject, body, headers, and attachments in the dashboard
  4. Forward to HTTP — optionally forward captured emails to a webhook URL

Key features​

Inbound email capture​

Every email sent to your inbox address is captured and stored. No mail server setup required.

Full email inspection​

View complete email details:

  • From / To / CC / BCC — all recipient fields
  • Subject — email subject line
  • Body — HTML and plain text versions
  • Headers — all email headers (SPF, DKIM, etc.)
  • Attachments — attached files

Email-to-HTTP forwarding​

Forward captured emails to any HTTP endpoint. Useful for testing email-triggered workflows without configuring inbound email processing infrastructure.

Real-time updates​

New emails appear in the dashboard instantly, similar to the webhook inspector.

Use cases​

  • Test transactional emails — verify email content from your application
  • Email integration testing — test inbound email processing workflows
  • Email parsing development — develop and test email parsers
  • QA and staging — capture emails in non-production environments

Getting started​

Create your first inbox →