Apps with 'Email testing' feature

An email and SMTP testing tool with API for developers.

Support tables for HTML and CSS in emails.

An email sandbox to inspect and debug emails in dev, staging, and QA environments before sending them to recipients in production.

Mailtrap is an Email Delivery Platform for businesses and individuals to Test, Send, and Control their email infrastructure performance.

Litmus shows you exactly how your designs look on every platform, across every popular web browser. (And the not-so-popular ones.)

FakeSMTP is a Free Fake SMTP Server with GUI for testing emails in applications easily. It is written in Java.

Create a virtual simulation of your email in the top 15, most used email clients! Our Email Acid Test will analyze your code and identify exactly which HTML tags and/or CSS properties are not supported by each email client.

Email Testing for QA & Development Teams. Catch every email your product sends, analyze it's contents, follow links and test deliverability all via the Mailosaur API.

Ethereal is a fake SMTP service, mostly aimed at Nodemailer users (but not limited to). It's a completely free anti-transactional email service where messages never get delivered.

Discover the rich features in PowerMTA that help you adopt and adapt to changing email authentication standards including support for DKIM and SPF and setup for DMARC via an automated testing tool.

Origami SMTP was created with the idea to have a fake email server for testing purposes that supported TLS. This is because the code the developer was working on at the time had several hard coded values enforcing TLS so most other solutions would not work.

Think Your Email Is Not Working? IsMyEmailWorking.com Is The Most Simple & Accurate Way To Test Your Email On The Web & It's Free!

Sendria (formerly MailTrap) is a SMTP server designed to run in your dev/test environment, that is designed to catch any email you or your application is sending, and display it in a web interface instead of sending to real world.

Mail7 developed a first of its kind Email Workflow Testing tool for Software Developers and Testers. You can instantly create as many disposal emails as you want and set automation via our APIs.

QA tool for automating end-to-end email tests. Get unlimited private email addresses and inboxes for testing new user signups, transactional emails and drip campaigns, deliverability and spam scores, etc. Integrates with your CI/CD workflow. Includes spam testing.

LunaticSMTP is a dummy SMTP server with desktop GUI for testing email sending applications.

Inbox Pirates lets you preview, test, and analyze your email on various devices, and popular email clients. It also offers subject line and email content testing to improve email open rates.

MXAlerts performs 24/7 remote round-trip email server monitoring software. We confirm email can be sent and received from your email server or exchange server.

Imitate Email is a fake SMTP server for developers and testers. It includes an embeddable widget so that testers can quickly see sent emails alongside the app they're testing.

Mailsnag lets you build resilient SMTP integrations while protecting you from spamming customers during testing on QA and Staging environments. It is like Chaos Monkey for SMTP integrations.

AI-powered email QA tool that catches typos, broken links, layout issues, and tone problems before send at a fraction of Litmus or Email on Acid's cost.

Sendpit is a hosted email testing sandbox designed for developers and QA teams. It allows applications to send emails to a safe inbox where messages can be inspected, debugged, and tested without being delivered to real users.

Free real-mailbox inbox placement testing across 9 providers including Gmail, Outlook, Mail.ru, and Yandex.

Temp Mail ID is a free temporary email service that lets you generate disposable email addresses instantly. It helps protect your privacy by allowing you to receive verification links, confirmations, and one-time emails without sharing your real inbox.

Send, preview, and share HTML emails — without the bloat. Simple email testing tool for developers and email teams. Start free with 10 emails per month (no credit card needed).