Received-message checks
Capture the final email in controlled inboxes and inspect the HTML, text, headers, links, and attachments.
Test email flows
Use MailSlurp when Email on Acid-style campaign QA needs received-message checks, campaign QA, deliverability diagnostics, and release automation. Keep inboxes, APIs, webhooks, diagnostics, and automated checks in one workflow.
Trusted by top companies worldwide
MailSlurp connects rendering and campaign QA with received-message checks, links, headers, OTP flows, webhooks, and release automation.
Use MailSlurp to connect campaign checks with real inbox capture, automated assertions, and product email testing.
Capture the final email in controlled inboxes and inspect the HTML, text, headers, links, and attachments.
Test email flowsPair template review with delivered-message checks so QA covers both content and the real received email.
Check compatibilityAssert URLs, codes, tracking links, and account actions before a launch or product release.
Read testing docsTest OTP, magic link, password reset, account activation, and MFA emails with deterministic inboxes.
Test auth emailRun checks against final subject lines, HTML, text fallback, links, sender details, and deliverability signals.
Check spam riskUse APIs, SDKs, and webhooks to repeat QA checks across staging, CI, release, and support workflows.
Explore developersMailSlurp keeps Email on Acid-style campaign QA connected to real inboxes, APIs, webhooks, diagnostics, and repeatable checks.
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.
Teams working on Email on Acid alternative needs can use MailSlurp to run received-message checks, campaign QA, deliverability diagnostics, and release 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.
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.
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.
Integrate MailSlurp Seamlessly
Official plugins and SDKs for all major programming languages, frameworks, and test platforms. All functionality available via API or dashboard.
MailSlurp fits right into your existing development, testing, and CI/CD workflows. Deploy and iterate with confidence and actionable feedback.
Emails processed
500 million+
Infrastructure that scales.
Mobile networks
20+
Leverage global telecom networks.
Mature platform
10+ years
Stable and dependable.
