MailSlurp logo
MailSlurp email rendering checks across devices

Use MailSlurp when email QA needs more than previews

Use MailSlurp when Litmus and Email on Acid-style review needs rendering review, received-message checks, link validation, OTP testing, and automation. Keep inboxes, APIs, webhooks, diagnostics, and automated checks in one workflow.

Trusted by top companies worldwide

  • Broadcom
  • Scraper
  • Trivago
  • Avast
  • Wolt
  • Panasonic
  • Broadcom
  • Scraper
  • Trivago
  • Avast
  • Wolt
  • Panasonic
MailSlurp device preview for email testing

Test the message after it is sent, received, and opened

MailSlurp connects rendering and campaign QA with received-message checks, links, headers, OTP flows, webhooks, and release automation.

Email QA workflows MailSlurp supports

Use MailSlurp to connect campaign checks with real inbox capture, automated assertions, and product email testing.

Received-message checks

Capture the final email in controlled inboxes and inspect the HTML, text, headers, links, and attachments.

Test email flows

Rendering review

Pair template review with delivered-message checks so QA covers both content and the real received email.

Check compatibility

Link and CTA validation

Assert URLs, codes, tracking links, and account actions before a launch or product release.

Read testing docs

Authentication flows

Test OTP, magic link, password reset, account activation, and MFA emails with deterministic inboxes.

Test auth email

Campaign QA

Run checks against final subject lines, HTML, text fallback, links, sender details, and deliverability signals.

Check spam risk

Automation

Use APIs, SDKs, and webhooks to repeat QA checks across staging, CI, release, and support workflows.

Explore developers

Litmus vs Email on Acid workflows in MailSlurp

MailSlurp keeps Litmus and Email on Acid-style review connected to real inboxes, APIs, webhooks, diagnostics, and repeatable checks.

What MailSlurp handles

MailSlurp combines rendering-aware QA with controlled inboxes, received-message assertions, OTP checks, webhooks, and deliverability diagnostics.

Start with one high-value message, automate the check, then expand the same MailSlurp workflow across the email and SMS flows customers depend on.

Bring Litmus and Email on Acid-style review into MailSlurp

Teams working on Litmus vs Email on Acid needs can use MailSlurp to run rendering review, received-message checks, link validation, OTP testing, and automation against real messages and controlled inboxes.

That keeps the result visible to engineers, QA, support, and lifecycle teams without relying on shared mailboxes or one-off screenshots.

  • Cover Litmus vs Email on Acid with MailSlurp workflows.
  • Cover email QA with MailSlurp workflows.
  • Cover rendering checks with MailSlurp workflows.
  • Cover inbox automation with MailSlurp workflows.

Connect visual QA with real inbox behavior

Email templates can look correct before send and still fail in the real workflow. MailSlurp lets teams capture the received message, inspect content, validate links, and assert the user-facing result.

That gives campaign, lifecycle, and engineering teams one place to check the final message rather than separating preview work from inbox and automation work.

  • Validate final HTML, text fallback, links, and sender details.
  • Test authentication and notification emails from the same platform.
  • Repeat checks through APIs, SDKs, CI, and webhooks.

Automate checks as the product changes

MailSlurp works from APIs, SDKs, webhooks, dashboards, and CI pipelines, so the same checks can run during development, staging, release, and support.

Use it to inspect the final message, verify links and codes, monitor deliverability signals, and keep customer-facing email reliable as templates, senders, domains, and applications change.

  • Create test inboxes and phone numbers on demand.
  • Wait for messages, parse content, and assert the user-facing result.
  • Keep received-message history available for debugging and team review.

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.

Global messaging scale

Emails processed

500 million+

Infrastructure that scales.

Mobile networks

20+

Leverage global telecom networks.

Mature platform

10+ years

Stable and dependable.