TestMail.app
TestMail.app is a specialized email testing platform designed for developers and QA teams who need to automate end-to-end email testing. The service provides unlimited email addresses and mailboxes through a simple namespace and tag system, allowing teams to create real email addresses on the fly without spamming real customers.
How It Works
Users receive a unique namespace upon signup, and can create unlimited email addresses by simply changing the tag: {namespace}.{tag}@inbox.testmail.app. TestMail receives, parses, spam-tests, and indexes all emails for easy retrieval via API.
API Access
The platform offers both a simple JSON API and a powerful GraphQL API for querying emails. These APIs can be used with any HTTP or GraphQL client in any language or environment, including CI/CD pipelines. Advanced features include wildcard search, "live" queries for waiting on new emails, sorting, pagination, attachments, and SpamAssassin reports.
Team Collaboration
Teams can invite unlimited collaborators, create separate namespaces for different projects, share test emails, monitor usage, and manage team membership - all at no extra cost.
Security & Reliability
TestMail.app is built with security in mind: HTTPS/TLS is forced on all traffic, data is encrypted in-transit and at-rest, and logins are passwordless. The service maintains a 99.99% uptime SLA with APIs distributed across multiple data centers.
Target Audience
Developers, QA engineers, and development teams who need to automate email testing in their workflows and CI/CD pipelines.
Key Features
- Unlimited email addresses and mailboxes via namespace/tag system
- JSON API and GraphQL API for email retrieval
- CI/CD pipeline integration support
- Advanced search with wildcard matching
- Live queries for real-time email monitoring
- SpamAssassin spam testing reports
- Email parsing and indexing
- Team collaboration with unlimited members
- Passwordless login authentication
- 99.99% uptime SLA
- Comprehensive documentation and interactive GraphQL Playground
Use Cases
- End-to-end email testing in development workflows
- Automated email verification in CI/CD pipelines
- QA testing for email-dependent applications
- Testing transactional email systems
- Verifying email templates and content
- Spam score testing before production deployment
- Team-based email testing collaboration
Pros
- Free forever plan with 100 emails/month
- Unlimited email addresses created on the fly
- Simple integration with any language or environment
- World-class support from real engineers
- 99.99% uptime SLA with public status page
- Unlimited team members at no extra cost
- Comprehensive API documentation
Cons
- Free plan limited to 100 emails/month
- Requires technical knowledge to implement APIs
- Dependent on third-party service for email testing
Pricing
Free forever plan: 100 emails/month. No credit card required. Enterprise plan available for multiple separate teams.
