LunaticSMTP Alternatives

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.

Features:

• Email testing
• Email Forwarding
• Email Server
• REST API

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 UI, or through JSON API - Release messages to real SMTP servers for delivery

Features:

• Email Forwarding
• Developer Tools
• Portable
• SMTP

Mailosaur

Mailosaur lets QA & Development Teams capture and test email as part of manual and automated testing. Create virtual SMTP servers, with unlimited email addresses while you build, test and present your product. Mailosaur works with any language or framework, with client libraries (SDKs) for all major languages and a superb API for automated end-to-end testing. https://mailosaur.com/docs/ https://mailosaur.com/docs/client-libraries/

Features:

• Email testing
• SMTP

smtp4dev

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.

Features:

• Developer Tools
• SMTP

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" as your SMTP server, and all emails will be intercepted and displayed in this software.

Papercut

Ever need to test emails from an application, but don't necessarily want it sending them out? Don't want to hassle with pointing it to a physical SMTP server? All you want to is verify it can send email, and take a look at the message. Papercut is the answer. 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.

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 smtp://127.0.0.1:1025 instead of your default SMTP server, then check out http://127.0.0.1:1080 to see the mail that's arrived so far.

Features:

• Developer Tools
• Support for Javascript
• SMTP

testmail.app

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. Get started with the free forever plan.

Features:

• GraphQL API
• Custom Mailboxes
• Email testing
• Software as a Service
• Software Testing Tool
• Test automation

DummySMTP

DummySMTP allows you to test the email functionality of your applications, without setting up multiple test email addresses and cluttering your inbox. It doesn’t matter who the emails are addressed to, they end up in your DummySMTP mailbox. Simply sign in and use the SMTP connection setting in your application.

Features:

• Debugger
• Developer Tools

Origami SMTP

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. Those that appeared they might work often crashed when dealing with TLS. Origami SMTP was born first focusing on getting enough of the SMTP protocol working to test it. After that STARTTLS (TLS) support was added.

Features:

• Developer Tools
• Email testing
• Email Server
• SMTP
• Support for TLS