smtp4dev Alternatives
smtp4dev is described as 'Dummy SMTP server that sits in the system tray and does not deliver the received messages. The received messages can be quickly viewed, saved and the source/structure inspected. Useful for testing/debugging software that generates email' and is an app in the development category. There are more than 10 alternatives to smtp4dev for a variety of platforms, including Online / Web-based, Windows, SaaS, Linux and Mac. The best alternative is Papercut, which is both free and Open Source. Other great apps like smtp4dev are FakeSMTP, Mailtrap, Mailosaur and DummySMTP.
Papercut is a simplified SMTP server designed to only receive messages (not to send them on) with a GUI on top of it allowing you to see the messages it receives.
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FakeSMTP is a Free Fake SMTP Server with GUI for testing emails in applications easily. It is written in Java.
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Mailtrap is a fake SMTP server for development teams to test, view and share emails sent from the development and staging environments without spamming real customers.
Mailtrap vs smtp4dev opinions
smtp4dev is a local system, mailtrap is an online service
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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.
DummySMTP allows you to test the email functionality of your applications, without setting up multiple test email addresses and cluttering your inbox.
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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.
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.
Origami SMTP vs smtp4dev opinions
Cross-Platform with TLS support.
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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.
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A local SMTP server with email display, used mostly for development of other apps. Think unlimited Mailtrap that runs on your own computer.
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