Build

Email inboxesProvision inboxes, domains, and sending controls for application workflows.Phone numbersProvision real phone numbers and SMS flows for signups, alerts, and support.A.I. transformersTurn inbound email and attachments into structured downstream data.Routing automationRoute messages, webhooks, and workflows to the right system automatically.

Test

E2E TestingValidate auth, notification, and release flows with real email and SMS.Device renderingPreview email layouts across major clients and devices before launch.Email auditCatch broken links, missing assets, and content issues before send.Load testProvision inbox cohorts during stress runs to measure latency and delivery.

Monitor

Inbox placementRun deliverability and inbox placement checks before launches and migrations.Deliverability testingValidate sender readiness and launch quality before trust and inboxing slip.Domain monitoringTrack SPF, DKIM, DMARC, and sender-domain drift from one monitor layer.Campaign probeContinuously audit links, assets, and template drift with probe addresses.Phone + Email IdentityProtect signup and outreach quality with email intelligence and phone lookup.

Overview

Explore the full platform

Build, test, monitor, and route customer messaging from one platform.

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DevelopersBuild with MailSlurp APIs, SDKs, and integration-ready workflow patterns.TestingValidate email and SMS paths with real inboxes and phone numbers in end-to-end tests.DeliveryMonitor sender health and deliverability posture before trust and inboxing slip.Campaign QACheck links, assets, previews, and campaign readiness before every send.Inbound routingRoute inbound mail, attachments, and fallback queues into the right systems.AI extractionTurn inbound messages, invoices, and attachments into structured data.

DocumentationDeveloper docs, concepts, and setup guides.API ReferenceEndpoint and schema docs for every API surface.IntegrationsSDKs, test frameworks, workflow tools, and API clients.ExamplesRunnable implementation examples and sample projects.VideosWatch practical walkthroughs and implementation demos.

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Email›

Inboxes Emails Attachments Custom domains Inbox connectors IMAP SMTP Forwarding Auto reply Alias proxy mailbox Virtual inboxes

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Testing›

Integration testing Wait for messages MFA TOTP devices Playwright Cypress Selenium WebdriverIO CodeceptJS JUnit Pytest Robot Framework TestCafe Tricentis Testim

Monitor›

Domain Monitor Monitoring Campaign Probe Email audit Email feature checker Reputation

Deliverability›

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Device Preview›

Device previews

AI/Extract›

AI automations AI transformers Invoke transformers AI results Output schemas

Identity›

Email verification

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Webhooks Routing rulesets Storage Microsoft Power Automate Zapier

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API›

Authentication REST API OpenAPI Postman Insomnia Bruno Pagination GraphQL Protobuf

Libraries›

SDK overview Javascript Typescript Email Client Java Email Client CSharp Email SDK Documentation Python Email Library PHP Email Client Ruby Email Library Golang Email SDK Kotlin Email Library Swift iOS Email Library Dart Email Library C++ Email SDK Crystal Email Library CSharp NET Standard 2.1 Cypress MailSlurp Deno MailSlurp Client Elixir Email API Erlang Email API Graph QL Haskell Email Library Lua Email Testing MailSlurp SDKs Nim Email Testing Objective C Email Library OCaml Email Library Perl Email Framework Powershell Email Library Protobuf Rust MailSlurp Client Scala Email API Zapier Integration

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