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MailSlurp

Developer Tools Free · from $9/mo

About MailSlurp

MailSlurp gives developers temporary email addresses to test signup flows, password resets, and email notifications without polluting real inboxes.

What it does

You create disposable inboxes via API or dashboard, send and receive emails, and verify delivery. It supports SMTP, IMAP, and webhooks, and works with any programming language.

Best for

  • Developers testing email-based user flows
  • QA engineers automating email verification in CI/CD
  • Teams building email-heavy applications

Strengths

  • REST API with SDKs for 10+ languages
  • Supports attachments, HTML, and plain text
  • Webhooks for real-time email event tracking

Key features

  • Disposable inboxes — Create unlimited temporary email addresses
  • REST API & SDKs — Integrate with Python, JavaScript, Java, Ruby, Go, and more
  • SMTP/IMAP support — Send and receive emails programmatically
  • Webhooks — Get notified when emails arrive
  • Email verification — Check delivery status and content
  • CI/CD integration — Use in automated test suites
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