MailHog is described as 'Email testing tool inspired by MailCatcher, but easier to install' and is an app in the office & productivity category. There are more than 25 alternatives to MailHog for a variety of platforms, including Web-based, Mac, Linux, Windows and SaaS apps. The best MailHog alternative is Postfix, which is both free and Open Source. Other great apps like MailHog are Mailpit, Gmailnator (Emailnator), Mailcatch.app and txen.de.
TempuMail is Temp Mail, also known as Temporary Email, Disposable Email, or Fake Email, is an online service that provides users with a temporary email address. This type of email address can be used to protect your privacy when making online purchases, signing up for online...
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.
Mailosaur is the most popular commercial alternative to MailHog.
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.
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.
testmail.app is the most popular SaaS alternative to MailHog.
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.
Sendria is the most popular Self-Hosted alternative to MailHog.
LunaticSMTP is a dummy SMTP server with desktop GUI for testing email sending applications.
MailDev is a simple way to test your project's generated emails during development with an easy to use web interface that runs on your machine built on top of Node.js.
Imitate Email is a fake SMTP server for developers and testers. It includes an embeddable widget so that testers can quickly see sent emails alongside the app they're testing.
United Kingdom
Poland
EU
France
Ukraine
Inbucket has all the major functionalities that MailHog has, but it's still being maintained.