Email & SMS test automation for engineering teams

Create and test products that are high quality from the very start.

Join thousands of engineering teams using Mailosaur

SMS track your delivery progress
SMS track your delivery progress

Trusted by businesses of all sizes

Assortment of brand logos including Forbes, Uber, Paypal, Checkout.com, UEFA and Aer Lingus.
Assortment of brand logos including Forbes, Uber, Paypal, Checkout.com, UEFA and Aer Lingus.
Engineering branch forwarding emails to customers

Focus on building features, not testing infrastructure

Mailosaur lets engineering teams get on with development, rather than maintaining custom testing tools

Developer sandboxes

Allow developers to send, capture and analyze emails during development, with their own personal email and SMS sandbox.

Test email and SMS in one place

Use the same code to capture and test SMS messages, with a single platform that handles all communication testing consistently.

Environment segregation

Shield your development and staging environments by configuring them to send everything to Mailosaur.

Engineering branch forwarding emails to customers
New message
To
@you.mailosaur.com
Cc Bcc
Subject
Message
New message
To
@you.mailosaur.com
Cc Bcc
Subject
Message

Unlimited email addresses

Use any email address you want, no code required

Use a unique email address for every test, build, team member, environment, or any other use case you have. With Mailosaur supporting an unlimited number of email addresses you can use from anywhere.

A proven friend of engineering teams

Mailosaur is extremely reliable and offers easy implementation. The support is thorough, responsive, and very personable.

Matt Nash

checkout.com

Logo for checkout.com
// Step 1: Send an email into Mailosaur

// Step 2: Fetch your message via Mailosaur
const MailosaurClient = require('mailosaur');

const mailosaur = new MailosaurClient('YOUR_API_KEY');

const criteria = {
  sentTo: 'anything@YOUR_SERVER_ID.mailosaur.net',
};

const email = await mailosaur.messages
  .get(serverId, criteria);

// Step 3: Complete the process
expect(email.subject).toBe('My password reset');

How it works

Boost end-to-end test coverage in minutes with Mailosaur.

  • Trigger a process in your product that sends out email or SMS (e.g. requesting a password reset).

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Why Mailosaur?

Automate with favourite frameworks

Write tests with familiar tools. Supports all major frameworks, including Cypress, Playwright, Selenium, Robot Framework, and more.

Manage team access centrally

Work in harmony with teams and departments globally with our centralized system allowing shared access to the entire team on one account.

Compliant and secure

With comprehensive Information Security and GDPR-compliant controls, we are committed to protecting your data.

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Ready to get started?

Get in touch or create an account