Mailtrap

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.

Freemium Web

Mailosaur

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...

Commercial

FakeSMTP

FakeSMTP is a Free Fake SMTP Server with GUI for testing emails in applications easily. It is written in Java. Configure your application to use "localhost"...

Free Open Source Mac OS X Windows Linux

MailCatcher

MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a web interface. Run mailcatcher, set your favourite app to deliver to...

Free Open Source Mac OS X Windows Linux

MailHog

MailHog is an email testing tool inspired by MailCatcher, but easier to install. - Configure your application to use MailHog for SMTP delivery - View emails in the web...

Free Open Source Mac OS X Windows Linux

LunaticSMTP

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

Free Open Source Mac OS X Windows Linux BSD JavaFX

SMTP Bucket

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.

Free Web