Mailosaur for...

Engineering

Automate and test email and SMS workflows

Quality Assurance

Empower your team and improve email quality

Product Management

Demo and improve your product using email and SMS

Marketing

Deliver high-quality, targeted email campaigns

Solutions

Email Testing

Create end-to-end tests that depend on email

SMS Testing

Automate and use SMS messages during testing

Email Previews

View your email in Gmail, Outlook and mobile devices

Test automation

See how easy it is to automate all the tests you thought you couldn't

Features

Rules

Create automated rules that simulate every type of scenario including email bounces and out-of-office replies

Custom Domains

Unlimited recognisable email addresses for your brand

Enterprise SSO

Centralized security for your organization

Forwarding Rules

Set up rules that automatically forward your emails to certain inboxes

Links and Codes

Peace of mind that you are sending exactly what you mean to, everytime

Message Analysis

Ensuring the quality of your content is never compromised

Sending, Replying and Forwarding Emails

Seamless email and SMS interactions, every time

Virtual SMTP Servers

Use Mailosaur as a dummy SMTP server to catch every email your product sends

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Blog

Explore the Mailosaur blog for expert insights on email & SMS testing, automation, and quality assurance

Software development

What is IMAP?

IMAP (Internet Message Access Protocol) – a powerful communication protocol shaping modern email management. Learn how IMAP works and explore the key differences between IMAP and POP3.

Software development

Why emails look so different in different clients?

Email inconsistency across different clients and devices is a common source of frustration for both senders and recipients. This inconsistency can manifest in several ways, leading to emails not appearing in the inbox, content not fully loading, or images not displaying.

Best practices

How to create a good SMS testing plan

SMS testing plans are important for staying on track when testing the functionality of your SMS campaigns. Without a clear test plan it’s easy to get disorganized, which can lead to inefficient testing, missing or unusable results, and other mistakes slipping through the cracks.

Selenium

How to automate password reset tests with Selenium

Bring an end to broken password resets driving away users.

Selenium

How to automate email verification with Selenium

Stop people being blocked out of accounts new and old.

Selenium

Reliably automating two-factor authentication testing with Selenium

Ensure one-time passwords work as intended.

Mobile phone illustrations with pass and fail notifications and Mailosaur dashboard

Mailosaur vs Competitors

Mailosaur still supports SMS short codes (unlike some alternatives)

If your automated tests rely on receiving SMS from short codes, here’s a critical update: Mailosaur continues to support short code inbound SMS, while others no longer do.

Email and mobile phone illustration with Mailosaur and Playwright logos

Automation

Tutorial: two-factor authentication testing with Playwright and Mailosaur

An in-depth guide showing you how to test two-factor authentication with Playwright and Mailosaur.

MFA and 2FA

Tutorial: Automated testing of 2FA with Mailosaur and Katalon

This tutorial shows you how to test two-factor authentication using SMS or an authenticator app with Mailosaur and the Katalon automated testing platform.

Illustration of testing framework logos. 2024: year in review in text

Best practices

Major updates, changing habits – The automated testing year in review

How Selenium, Playwright, WebDriverIO, and more changed in 2024 – and how users changed their relationship with their testing frameworks.

Illustration of envelopes and mobile phone notifications

Best practices

Black Friday 2024 – Why effective SMS and email messaging has a significant role to play

Stand out amongst the Black Friday chaos. Provide relevant, reliable, personalized content to customers via email and sms and see the benefits.

Playwright

How to use Playwright for testing email edge cases

Test invalid email addresses, navigate junk handlers, and optimize your communication flow using Playwright.

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