Team access
Shared workspaces and role-based controls.
Build, test, and automate email and SMS workflows
MailSlurp is the all-in-one platform for email and SMS development, QA testing, monitoring, and AI-powered pipelines. Ship faster, reduce delivery failures, and keep messaging workflows audit-ready.
Trusted by teams at
Product features
Build and run reliable email workflows from test to production.
Programmable inbox APIsEmail sandboxesDomain and compliance controls
SMS and Mobile
ExploreUse real numbers and SMS APIs for auth and global messaging flows.
Real phone numbersOTP and MFA testingGlobal SMS APIs
Testing
ExploreValidate flows in CI before release with realistic messaging tests.
End-to-end test helpersEmail auditing and reliability checksDevice and domain monitors
Automations
ExploreTurn incoming messages into structured actions and data pipelines.
Webhooks and eventsRouting and forwardingAI extraction pipelines
Enterprise compliance
Audit trails, retention, and governance.
APIs and SDKs
Production-ready APIs with generated SDKs.
Visual dashboards
No-code monitoring for ops and QA teams.
Messaging APIs
Programmable email and phone workflows
Build with inbox and SMS APIs in one platform. Create accounts, provision numbers, and run messaging operations with SDKs your team already uses.
- Create inboxes and phone numbers on demand
- Send and receive with unified APIs
- Use generated API clients across major languages
messaging-workflow.ts
const inbox = await mailslurp.createInbox();
await mailslurp.sendEmail(inbox.id, {
to: [inbox.emailAddress],
subject: 'Hello',
body: 'Welcome',
});
const sms = await mailslurp.waitController.waitForLatestSms({
waitForSingleSmsOptions: {
phoneNumberId: phone.id,
timeout: 30_000,
unreadOnly: true,
},
});
await mailslurp.webhookController.createWebhook({
inboxId: inbox.id,
webhookOptions: {
url: 'https://my-server.com/webhook',
eventName: CreateWebhookOptionsEventNameEnum.NEW_EMAIL,
},
});
18+ SDKs and integrationsEmail APISMS APIWebhooksSMTP and IMAPSDK clients
Real E2E testing
OTP and MFA testing with production realism
Validate sign-up, login, and recovery journeys using real email and SMS channels in CI, staging, and release pipelines.
- Test OTP and MFA code retrieval end to end
- Validate magic links and auth notifications
- Reduce flaky auth tests with deterministic waits
Rendering and audits
Catch broken templates before customers do
Built for marketing, campaign operations, and non-developer teams that need fast visual QA, link checks, and deliverability audits before every send.
- Preview email rendering across clients and devices
- Audit links, images, and template compatibility
- Monitor domain auth and sender reputation signals
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Automation and integration architecture
Replace with transparent system map for routing, webhooks, and AI pipelines.
External connectionsAI labelingStructured extractionRouting and forwarding
Powerful automations
Connect systems and automate every message
Build ingestion pipelines using webhooks, rulesets, and forwarding. Label and extract data with AI, then sync records to downstream tools.
- Webhook-triggered workflows and rulesets
- AI labeling and structured data extraction
- Connections for ops, analytics, and CRM systems
Outcomes teams care about
Designed for delivery, reliability, and control
Ship workflows faster
Cut implementation cycles with APIs, SDKs, and reusable test helpers.
Reduce production incidents
Catch broken templates, auth-message failures, and routing issues before release.
Improve deliverability confidence
Monitor domain health and sender quality across ongoing campaigns and operations.
Stay audit ready
Use governance controls and message-level visibility for security and compliance teams.
Built for every team
Pick your workflow by role
Engineering
Build and scale messaging infrastructure with APIs, SDKs, and automation workflows.
QA and test automation
Run robust E2E testing for sign-up, login, OTP, and transaction messaging across CI.
Marketing and lifecycle
Audit rendering, catch campaign defects, and monitor sender quality before every launch.
Security and compliance
Apply controls, establish audit trails, and standardize message operations across teams.
Security and compliance
Enterprise-ready messaging operations
- Governance controls for cross-functional teams
- Operational visibility for compliance and security stakeholders
- Process patterns aligned to SOC2, GDPR, and regulated environments
SOC2-ready workflowsGDPR supportAudit-friendly controls
Integrations and ecosystem
Connect to existing systems without friction
API and SDK integrationsWebhook event pipelinesSMTP and IMAP accessGmail and mailbox workflowsNo-code and low-code automationCRM and analytics pipeline handoff
Pricing and plans
Start free and scale with confidence
Start free
Build proof-of-concepts and validate workflows with immediate API access.
Scale in production
Increase throughput and operational coverage for live messaging systems.
Enterprise
Coordinate teams, governance, and support for high-stakes messaging operations.
FAQ
Common questions
What is the difference between an email sandbox and a programmable inbox API?
An email sandbox is ideal for safe test traffic and non-production checks. A programmable inbox API gives you managed inbox workflows you can automate in apps, QA pipelines, and operational processes.
Can MailSlurp test OTP and MFA flows for email and SMS?
Yes. You can provision inboxes and phone numbers, wait for incoming messages, and assert OTP codes and auth links in end-to-end tests across CI pipelines.
Is MailSlurp useful for marketing and campaign operations teams?
Yes. Teams use MailSlurp for email rendering checks, broken-link and image audits, sender reputation monitoring, and pre-send quality controls.
Does MailSlurp support enterprise security and compliance requirements?
MailSlurp supports enterprise controls such as access governance, audit-oriented workflows, and deployment patterns for regulated teams. Contact sales for environment and compliance scope details.
What integrations and connection options are available?
MailSlurp supports API and SDK integrations, webhooks, SMTP and IMAP access, and workflow automation patterns for internal platforms and external business systems.
Can we start free and scale into production later?
Yes. You can start with a free account, validate workflows, then move to production plans with higher limits, governance, and support options.
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