Developers: Integrate Temporary Emails in QA & Automation

Practical examples for using temporary emails in CI, end-to-end tests, and local QA workflows.

Updated August 2025 • 10 min read

Playbook

  1. Generate a temp address before each test
  2. Run signup or verification flow against your app
  3. Poll the inbox page for expected email arrival
  4. Parse links or codes and complete flows
  5. Let the inbox auto-expire after 10 minutes

Example: Cypress E2E

// cypress/e2e/signup.cy.ts
describe('Signup with temporary email', () => {
  it('completes signup and verifies email', () => {
    // 1) Visit OneTimeEmail to generate inbox
    cy.visit('https://onetimeemail.net');
    cy.contains('Generate Your Inbox').click();

    // 2) Capture generated address from the UI (example selector)
    cy.get('[data-testid="generated-email"]').invoke('text').as('tempEmail');

    // 3) Use it to sign up in your app
    cy.get('@tempEmail').then((email) => {
      cy.visit('https://yourapp.example.com/signup');
      cy.get('input[name="email"]').type(email as string);
      cy.get('input[name="password"]').type('StrongPassword123!');
      cy.contains('Create account').click();
    });

    // 4) Return to inbox and wait for email
    cy.contains('Inbox').click();
    cy.contains('Verification').should('be.visible');

    // 5) Open email and click verify link
    cy.contains('Verification').click();
    cy.get('a').contains('Verify').then(($a) => {
      const href = $a.prop('href');
      cy.visit(href as string);
    });
  });
});

CI Tips

  • • Run tests serially for email flows to avoid timing conflicts
  • • Use unique test IDs per run to disambiguate inboxes
  • • Store verification links in CI logs for debugging
  • • Add retries with exponential backoff when polling inbox

Start Testing Now

Generate an inbox and wire it into your test flows.

Generate an Email