FakeSMTP is described as 'Free Fake SMTP Server with GUI for testing emails in applications easily. It is written in Java' and is an app in the development category. There are more than 25 alternatives to FakeSMTP for a variety of platforms, including Web-based, Windows, Linux, Mac and SaaS apps. The best FakeSMTP alternative is Mailpit, which is both free and Open Source. Other great apps like FakeSMTP are MailHog, Mailcatch.app, Papercut and Mailtrap.
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.
testmail.app is an email testing platform for developers and QA teams. Create unlimited test email addresses on the fly using namespaces and tags, with no inbox setup required. Tags make it easy to isolate emails between users and parallel test runs.
MailDev is a simple way to test your project's generated emails during development with an easy to use web interface that runs on your machine built on top of Node.js.
A fake SMTP server for e-mail integration testing. We capture all the e-mails we receive and make them available via our website and REST API.
A local SMTP server with email display, used mostly for development of other apps. Think unlimited Mailtrap that runs on your own computer.
A self-hosted SMTP testing gateway designed to replicate production email behavior—including TLS, DNS, authentication, and spam scoring—so your email tests reflect real-world conditions.
DevMail is an email sandbox service for software developers. It allows developers to capture emails from various environments and inspect HTML, text, source code, raw headers, and attachments, and improve deliverability by analyzing email spam scores.
Mailnest is an all in one email QA tool for development & testing teams in IT companies to test & improve email functionality.
Disposable email inboxes via API for testing signup and authentication flows, with automatic extraction of one-time passwords and magic links.
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.
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