MailHog and Mailpit alternative for hosted email testing

Move beyond local SMTP capture with hosted test inboxes, SMS workflows, native SDKs, and repeatable checks for shared QA and CI environments.

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MailHog and Mailpit alternative for hosted email testing

Trusted by teams at

Used by engineering, QA, lifecycle, and operations teams building and testing email and SMS workflows.

Email and SMS testing workflows

Quality assurance

Run QA checks against private MailSlurp inboxes so staging messages do not reach real customers.

Email receipt testing

Confirm that signup, password reset, notification, and bulk delivery workflows arrive in private MailSlurp inboxes.

Load testing

Evaluate the resilience of your email systems by subjecting them to load testing in a secure development environment with MailSlurp.

User interactions

Create repeatable email and SMS interaction tests with APIs, webhooks, dashboards, and CI-friendly assertions.

Move local SMTP tests into shared QA and CI

MailHog and Mailpit are useful for quick local SMTP capture. When the same workflow must run in CI or prove real receipt, move it into hosted MailSlurp inboxes, phone numbers, APIs, webhooks, and dashboards.

Local SMTP capture to CI migration checklist

Keep local capture fast with MailHog or Mailpit. The MailHog tutorial covers one local setup; move release-critical assertions into hosted inboxes.
Validate mailbox behavior and parsing in Email Sandbox.
Run end-to-end CI flows with Email Integration Testing.
Capture delivery and message lifecycle signals via Email Webhooks.
Route retries and suppression paths with Email Automation Routing.
Confirm sender reputation and inbox placement in Email Deliverability Test.

// create mailslurp client
const { MailSlurp } = require('mailslurp-client');
const mailslurp = new MailSlurp({ apiKey: process.env.API_KEY });

// create inboxes
const inbox1 = await mailslurp.createInbox();
const inbox2 = await mailslurp.createInbox();

// send email
await mailslurp.sendEmail(inbox1.id, {
  to: [inbox2.emailAddress],
  subject: "Test",
  body: "<span>Hello 👋</span>",
  isHTML: true
})

// receive email using wait methods
const email = await mailslurp.waitForLatestEmail(inbox2.id, 60000, true)
expect(email.body).toContain("Hello")

// list emails in inbox
const emails = await mailslurp.inboxController.getInboxEmailsPaginated({inboxId: inbox2.id})
expect(emails.numberOfElements).toEqual(1)

Modern APIs and SDKs

Control email and SMS in code using native SDKs in Java, C#, NodeJs, PHP, Python and more.

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Ready to move beyond local SMTP capture?

Use MailSlurp's hosted platform to scale email and SMS testing across teams, environments, and CI pipelines.

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