Email sandbox APIs

Send and receive emails from unlimited custom email addresses in code and tests. MailSlurp is the leading email API for developers, QA testers, and email marketing teams.

Email API

Use email accounts your way

Email integrations for everyone. Pick an approach that suits your workflow.

In applications and tests

Test applications end-to-end with real email addresses or build powerful email functionality that scales.

Using no-code dashboards

Send and receive emails with no-code dashboards. Build campaigns and automation for every use case.

Your favourite Mail client

Connect Mail, Outlook, Thunderbird and more to MailSlurp inboxes using IMAP and SMTP.

Feature-rich email platforms

Quick setup for any environment

Get started in minutes with developer SDKs, online dashboards, or using your favourite mail client.

Send and receive at scale for any campaign

Transactional email APIs for every use case with email-open tracking, templating, and contact lists.

Disposable or permanent email inboxes

Create unlimited test email accounts or permanent custom domains. Control mailboxes in code and tests.

Email address validation and bounce reduction

Verify email lists and increase deliverability with DKIM, SPF and bounce webhooks.

Forwarding, route rules, and automation

Create complex email routing rules for forwarding, automation and email proxy.

End-to-end testing, spam rating, and content analysis

Write integration tests using real email addresses. Test user sign-up, email notifications, email verification and more.

SSO team email accounts and inbox sharing

Enterprise mailbox provisioning with single sign-on support for Google, SAML, OAuth2 and more.

Webhooks, content matching and search

Process email events at scale with queue-backed HTTP webhooks.

Powerful developer integrations

Create and control email inboxes in any language or framework.

Getting started guides

Build email integrations for any use case.

Creating email accounts

Create temporary or permanent mailboxes using MailSlurp domain pool or your own custom domains.

Receiving emails

Receive emails in code or tests using webhooks or waitFor function. Search and match emails.

Sending emails

Send templated transactional emails at scale.

Test using real emails

End-to-end test applications using real email addresses.

Test software end-to-end

Test user authentication, forgotten password, email verification and more for your application using real email addresses. Use REST API, developer SDKs, and Zapier integrations to receive emails in code, test user sign up flows, and save new contacts and attachments to Google Drive and more.

Fake SMTP Servers

Capture emails in inbox traps to test emails safely with quick setup, no maintenance, and zero risk of spamming real users. Create virtual inboxes for every environment. Verify email sending without connecting to outbound SMTP servers.

Developer Toolkits

Get started in minutes with official MailSlurp integrations in a wide range of languages and frameworks.