Software Alternatives, Accelerators & Startups

FakeSMTP

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

Some of the top features or benefits of FakeSMTP are: Ease of Use, Free and Open Source, No Email Sending, Local Testing, and Java Application. You can visit the info page to learn more.

Best FakeSMTP Alternatives & Competitors in 2025

The best FakeSMTP alternatives based on verified products, community votes, reviews and other factors.
Filter: 12 Open-Source Alternatives. Latest update:

  1. 39

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

    Key MailHog features:

    Easy Setup Web Interface SMTP Server Simulation Integration with Development Environments

    Open Source

    /mailhog-alternatives
  2. 33

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

    Key Mailtrap features:

    Automated Testing HTML/CSS Check Spam Analysis Deliverability Alerts

    Open Source freemium

    /mailtrap-alternatives
  3. The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder. .

    Key MailReach.co features:

    Deliverability Improving Email Warming Meaningful Warming Content Smart Warming Algorithm

    Visit website paid $19.5 / Monthly (Pro)

    Visit website
  4. 35

    Email Testing for QA & Development Teams.

    Key Mailosaur features:

    Ease of Use API Integration Realistic Testing Comprehensive Documentation

    /mailosaur-alternatives
  5. 26

    Smtp4dev is an all-in-one SMTP server designed to develop and test emails in your applications.

    Key Smtp4dev features:

    Open Source Local Testing Cross-Platform Web Interface

    /smtp4dev-alternatives
  6. 23

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

    Key mailslurp features:

    Temporary Email Generation API Integration Email Receiving and Sending Customizable Domains

    Open Source freemium

    /mailslurp-alternatives
  7. 30

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

    Key MailCatcher features:

    Easy Setup Web Interface Simplicity Integration Capabilities

    Open Source

    /mailcatcher-alternatives
  8. 15

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

    Key MailSpons features:

    User-Friendly Interface Targeted Audience Reach Comprehensive Analytics Scalability

    /mailspons-alternatives
  9. 20

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

    Key Papercut features:

    Cost Efficiency Environmental Benefits User Management Security Features

    Open Source

    /papercut-alternatives
  10. 15

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

    Key LunaticSMTP features:

    Lightweight Customizable Easy to Setup Support for Lunatic Environment

    /lunaticsmtp-alternatives
  11. 21

    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.

    Key Ethereal Email features:

    Debugging Tool Free Service SMTP Support No Email Sending

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

    /imitate-email-alternatives
  13. 11

    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.

    Key testmail.app features:

    Email Testing Automation Real-time Results Integration Capabilities Multiple Inboxes

    freemium

    /testmail-app-alternatives
  14. 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-alternatives
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