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Authentication testing workflow

Authentication testing for magic links, OTP, and MFA

Release auth changes with evidence. MailSlurp lets teams validate email OTP, SMS OTP, magic-link, and recovery flows using real inboxes and phone numbers.

Trusted by top companies worldwide

  • Broadcom
  • Scraper
  • Trivago
  • Avast
  • Wolt
  • Panasonic
  • Broadcom
  • Scraper
  • Trivago
  • Avast
  • Wolt
  • Panasonic
Password reset and account recovery testing workflow

Test signup, magic-link, and password reset flows

Create isolated inboxes, trigger your app flow, wait for the message, and assert links or codes before a release reaches customers.

9:41
MailSlurp
iMessageToday 9:32 AM
Your MailSlurp verification code is 482913.
Use this code to finish signing in. It expires in 10 minutes.
Code received.
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iMessage

Cover auth journeys that span email and SMS

Use real phone numbers to capture OTP messages, assert timing, and test recovery, enrollment, and fallback behavior in staging and CI.

Authentication workflows MailSlurp supports

Use real inboxes and phone numbers so auth testing proves the delivered message path, not only the browser click path.

Magic-link login

Wait for login emails, extract the delivered link, and complete the auth flow with evidence from the real message.

Email OTP checks

Capture one-time passcodes from real inboxes and assert timing, content, resend behavior, and downstream state.

SMS verification

Provision real phone numbers for SMS OTP, phone verification, and recovery workflows.

Open SMS numbers

Password reset

Test reset links and timeout behavior with deterministic waits instead of shared inbox checks.

MFA enrollment

Combine email, SMS, and authenticator-device checks for deeper MFA coverage.

Release evidence

Keep message IDs, extracted codes, links, and failure context available for QA and engineering review.

Open testing platform

Integrate MailSlurp Seamlessly

Integrate with any framework

Official plugins and SDKs for all major programming languages, frameworks, and test platforms. All functionality available via API or dashboard.

Flexible integration patterns

CI/CD Native

MailSlurp fits right into your existing development, testing, and CI/CD workflows. Deploy and iterate with confidence and actionable feedback.

Video walkthroughs

Automate OTP email verification testing with UiPath Studio

Selenium MFA testing tutorial for OTP codes in Java

Low-code email magic link testing with BrowserStack

Authentication testing with disposable email accounts

Test 2FA email verification codes in Cypress

Extract email confirmation codes in Selenium tests

Test MFA email confirmation codes in Cypress

Test email confirmation codes with Playwright

Global messaging scale

Emails processed

500 million+

Infrastructure that scales.

Mobile networks

20+

Leverage global telecom networks.

Mature platform

10+ years

Stable and dependable.