Smtp4dev Alternatives

MailHog is an email testing tool inspired by MailCatcher, but easier to install.

Open Source

Email Delivery Platform that delivers just in time.
 Great for businesses and individuals.

Open Source freemium

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

MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a...

Open Source

Fake SMTP server for safe email testing. Stop accidentally spamming your customers.

Email Testing for QA & Development Teams.

Email and SMS testing and development platform for software engineers and QA testers

Open Source freemium

Papercut is an operational print management platform designed for windows, macs, and Linux, helping you keep track of all your prints.

Open Source

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.

Dummy SMTP server with JavaFX gui for testing email sending applications - anlar/lunaticsmtp

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.

A SMTP server with JavaFX GUI interface, TLS, HTML messages, and attachment support.

Imitate Email is a fake SMTP server with an embeddable web widget to let developers and users test email flows without leaving their app.