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.

See product overview

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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What Is SSL for Email? TLS, STARTTLS, and What Email Encryption Actually Protects

Learn what people mean by SSL for email, why modern systems really use TLS, how STARTTLS differs from implicit TLS, and what email transport encryption does and does not secure.

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SMTP Deliverability Email Testing Testing Email Dns Automation JavaScript Email Parser QA Email API SMS DMARC Device Previews Transactional Email API Marketing Email Authentication Integrations Java Selenium IMAP MFA Sender Reputation

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