Features

MailSlurp is easier to understand when you split it into product pillars instead of individual endpoints. Use this page to browse the platform in the same way teams usually adopt it:

• Messaging: inboxes, email, SMS, domains, attachments, and mailbox connectivity
• Testing: release and QA workflows for real messages and devices
• Monitoring: ongoing sender-health and campaign-quality checks
• Automation: event-driven routing, forwarding, replies, and AI extraction
• Governance: organizations, permissions, environments, storage, and access controls
• Developer tooling: SDKs, API reference, examples, and protocol integrations

If you want a team-specific path instead, go to Solutions.

Messaging

Provision inboxes, domains, phone numbers, and connected mailboxes for real workflows.

Address verification

Validate recipients before they hurt onboarding or sender trust.

Attachments

Upload, download, and process files attached to email workflows.

Custom domains

Use branded sender domains and manage production email identities.

Emails

Send, receive, inspect, and download messages and attachments.

External mailboxes

Connect Gmail, Outlook, and other providers into MailSlurp workflows.

Inboxes

Create permanent or disposable inboxes for apps, tests, and automations.

Plus addresses

Route sub-addresses into one inbox without provisioning every alias.

TXT/SMS

Provision real phone numbers and receive or send SMS in code.

Testing and QA

Validate sign-up flows, OTP paths, rendering, compatibility, and delivery before release.

Deliverability tests

Run expectation-based delivery checks across inbox or phone cohorts.

Device previews

Preview email rendering across clients and devices before launch.

Email audit

Check links, images, authentication posture, and message quality.

Email compatibility

Check feature support and content behavior for email HTML/CSS.

Test interface

Use the no-code testing UI when you need a quick visual workflow.

Testing overview

End-to-end email and SMS testing patterns for CI, staging, and release gates.

Wait for conditions

Replace sleeps with deterministic waits for matching messages.

Monitoring

Track sender health, campaign behavior, and message quality after your systems go live.

Campaign Probe

Capture live campaigns for ongoing QA, audits, and alerting.

Domain Monitor

Track SPF, DKIM, DMARC, MX, and sender-health drift over time.

Monitoring overview

Understand the release-quality and sender-health monitoring stack.

Reputation

Protect sender trust with bounce, complaint, and suppression controls.

Automation

Build event-driven routing, forwarding, AI extraction, and reply workflows.

AI transformers

Extract structured data from messages and attachments for automation.

Alias proxy

Mask addresses while still routing replies back into your workflows.

Auto reply

Configure automatic response behavior for operational mailboxes.

Forwarding

Forward messages into downstream systems or operational inboxes.

Routing rules

Apply allow/block and workflow rules to inbound email handling.

Webhooks

Push message and entity events into your applications in real time.

Team and Governance

Control environments, sharing, SSO, retention, and least-privilege access.

Environments

Isolate staging, production, and workflow-specific resources inside one org.

Guest portals

Create branded access experiences for external or customer users.

Roles and permissions

Design least-privilege access using custom roles and per-user permissions.

SAML SSO

Control sign-in with your identity provider and organization policy.

Storage

Understand retention, deletion, and storage behavior across resources.

Team accounts

Share inboxes, users, and organization controls safely across teams.

Developer Tooling

Start with the API, SDKs, examples, and protocol access patterns that fit your stack.

API reference

Browse the MailSlurp REST API and endpoint groups.

Authentication

Configure API keys and safe auth patterns across environments.

Examples

Browse runnable examples and end-to-end reference projects.

IMAP / SMTP

Use protocol access when you need real mailbox credentials.

Pagination

Handle long-running list workflows safely and predictably.

SDK libraries

Jump into JavaScript, Java, Python, Go, C#, PHP, Ruby, and more.