High volume messaging
Leverage MailSlurp serverless email and SMS processing to send and receive email at very high volumes.
E2E messaging
Inboxes and phone numbers for load testing
Create unlimited email accounts and phone numbers during automated load tests. Connect K6s, Locust, JMeter, shell scripts and more.
Trusted by teams shipping customer messaging
Email load testing
Stress test key endpoints
Test applications that send or receive emails at scale using MailSlurp loadtesting email accounts.
Unique test accounts
Test using fresh email addresses and phone numbers for each test run. Control mailboxes easily via REST.
Test performance and scaling
Check vital aspects of your services using real email and SMS to prevent outages and disruptions as your application scales.
Verify site reliability
Test your application endpoints for real before high traffic events. Make sure email and SMS dependent workflows scale correctly.
Application load testing
Key workflows
Move from evaluation into a concrete MailSlurp workflow, then expand once the first path is running cleanly.
Workflow 01
Instant email and SMS
Control mailboxes and mobile devices from automated load tests. Use them to stress test application functionality like user sign-up, password reset, and email blasts.
Workflow 02
Powerful developer APIs
Libraries and API endpoints designed for automation and QA. Easily create accounts then send and receive email and SMS in tests.
Workflow 03
Works seamlessly
Designed for testing at scale. Examples and plugins for major frameworks like K6, JMeter, Locust and more.
Developer integration
Drop message assertions into Playwright, Cypress, Selenium, or CI
Use SDK helpers inside your existing test runners instead of building mailbox polling and parsing from scratch.
- Wait for matching email or SMS in test code
- Extract links, codes, and headers for assertions
- Run the same patterns locally and in CI
Site reliability + messaging
Site reliability + messaging
Add email and SMS to your test suites today