Papercut

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.

Free Open Source Windows

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.

• smtp4dev is a local system, mailtrap is an online service Guest • Feb 2018 • 2 agrees and 0 disagrees Disagree   Agree

Freemium Web

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 Windows Linux

Origami SMTP

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

Free Open Source Mac Windows Linux BSD

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 $ $ $ Web

LunaticSMTP

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

Free Open Source Mac Windows Linux BSD JavaFX ... Java

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

Own Smtp Server

Own SMTP Server is a SMTP server for Windows that lets you send email messages directly from your system. It's very simple but very useful you can use it instead of...

Free Windows