Mailtrap AlternativesMail Servers and other similar apps like Mailtrap

Mailtrap is described as 'Email Delivery Platform for businesses and individuals to Test, Send, and Control their email infrastructure performance' and is a Mail Server in the development category. There are more than 25 alternatives to Mailtrap, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and SaaS apps. The best Mailtrap alternative is Mailpit, which is both free and Open Source. Other great sites and apps similar to Mailtrap are MailHog, Mailcatch.app, FakeSMTP and Papercut.

Mailtrap iconMailtrap
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Mailtrap is an Email Delivery Platform for businesses and individuals to Test, Send, and Control their email infrastructure...

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Mailtrap alternatives page was last updated Mar 18, 2025
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  1. Mailpit icon

    Mailpit

     2 likes
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    An email and SMTP testing tool with API for developers.

    32 Mailpit alternatives

    License model

    • Free • Open Source

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    Mailpit screenshot 1

    Mailpit Features

    1.  Email validation
    2.  REST API
    3.  Email testing

    Mailpit VS Mailtrap

     

    • Mailpit is the most popular Windows, Mac & Linux alternative to Mailtrap.

    • Mailpit is the most popular Open Source & free alternative to Mailtrap.

    • Mailpit is Free and Open SourceMailtrap is Freemium and Proprietary
  2. MailHog icon

    MailHog

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

    32 MailHog alternatives

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Docker
    MailHog screenshot 1
    Discontinued

    The last version (1.0.1) is from August 2020, and the project is unmaintained. https://github.com/mailhog/MailHog/issues/442

    MailHog Features

    1.  Portable
    2.  Email Forwarding
    3.  SMTP Support

    MailHog VS Mailtrap

     
    Comments about MailHog as an Alternative to Mailtrap
    ivolimmen
    Positive Mar 18, 2025
    0

    MailPit is the continuation of this product.

    Mailtrap Icon
    MailHog icon

    • Most users think MailHog is a great Mailtrap alternative.

    • MailHog is Free and Open SourceMailtrap is Freemium and Proprietary
  4. Mailcatch.app icon

    Mailcatch.app

     3 likes
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    An email sandbox to inspect and debug emails in dev, staging, and QA environments before sending them to recipients in production.

    License model

    • Freemium • Proprietary

    Country of Origin

    • GB flagUnited Kingdom

    Platforms

    • Online
    Mailcatch.app screenshot 1

    Mailcatch.app Features

    1.  Email testing

    Mailcatch.app VS Mailtrap

     

    • Mailcatch.app is the most popular Web-based alternative to Mailtrap.

    • Mailcatch.app is Freemium and ProprietaryMailtrap is also Freemium and Proprietary
  5. FakeSMTP icon

    FakeSMTP

     6 likes
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    FakeSMTP is a Free Fake SMTP Server with GUI for testing emails in applications easily. It is written in Java.

    23 FakeSMTP alternatives

    License model

    • Free • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    Mac OS X

    FakeSMTP Features

    1.  Email testing

    FakeSMTP VS Mailtrap

     
  6. Papercut icon

    Papercut

     6 likes
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    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.

    25 Papercut alternatives

    License model

    • Free • Open Source

    Platforms

    • Windows
    Instant Feedback When New Email Arrives

    Papercut Features

    1.  SMTP Support

    Papercut VS Mailtrap

     
  7. MailCatcher icon

    MailCatcher

     4 likes
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    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.

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    MailCatcher screenshot 1

    MailCatcher Features

    1.  SMTP Support
    2.  Support for Javascript

    MailCatcher VS Mailtrap

     
  9. Mailosaur icon

    Mailosaur

     10 likes
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    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.

    License model

    Application types

    Country of Origin

    • GB flagUnited Kingdom

    Platforms

    • Online
    Mailosaur screenshot 1

    Mailosaur Features

    1.  Email testing
    2.  SMS API
    3.  SMTP Support
    4.  SMS testing
    5.  POP3 Support
    6.  Email automation

    Mailosaur VS Mailtrap

     
    Comments about Mailosaur as an Alternative to Mailtrap
    AliceDewaele
    Positive Oct 20, 2022
    0

    Our marketing team sent out emails that were hard to read on an IPhone. We used the email previews feature from Mailosaur to check that my team had fixed it.

    Mailtrap Icon
    Mailosaur icon

    • Mailosaur is the most popular commercial alternative to Mailtrap.

    • Mailosaur is Paid and ProprietaryMailtrap is Freemium and Proprietary
  10. MailSlurp: Developer Email API icon

    MailSlurp: Developer Email API

     4 likes
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    Create email addresses on demand. Send and receive real emails and attachments from code. Rest API and developer kits available.

    19 MailSlurp: Developer Email API alternatives

    License model

    • Freemium • Proprietary

    Platforms

    • Online
    • Ruby
    • C#
    • Laravel
    • JavaScript
    • Software as a Service (SaaS)
    • PHP
    • Java
    • Node.JS
    MailSlurp: Developer Email API screenshot 1

    MailSlurp: Developer Email API Features

    1.  REST API

    MailSlurp: Developer Email API VS Mailtrap

     

    • MailSlurp: Developer Email API is the most popular SaaS alternative to Mailtrap.

    • MailSlurp: Developer Email API is Freemium and ProprietaryMailtrap is also Freemium and Proprietary
  11. smtp4dev icon

    smtp4dev

     7 likes
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    The fake SMTP email server for development and testing.

    20 smtp4dev alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • GB flagUnited Kingdom

    Platforms

    • Windows
    • Linux
    • Mac
    smtp4dev main user interface

    smtp4dev Features

    1.  No Tracking
    2.  Ad-free
    3.  SMTP Support

    smtp4dev VS Mailtrap

     
  12. MailMug.net icon

    MailMug.net

     2 likes
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    Capture SMTP traffic from staging and dev environments. Easily validate email content text or HTML/CSS. Utilize an Email Sandbox to thoroughly examine and troubleshoot emails within staging, development, and quality assurance (QA) environments prior to sending them to recipients...

    License model

    • Freemium • Proprietary

    Application type

    Platforms

    • Online
    MailMug.net screenshot 1

    MailMug.net VS Mailtrap

     
  13. testmail.app icon

    testmail.app

     4 likes
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    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.

    License model

    • Freemium • Proprietary

    Application type

    Platforms

    • Software as a Service (SaaS)
    testmail.app screenshot 1

    testmail.app Features

    1.  GraphQL API
    2.  Software Testing Tool
    3.  Email testing
    4.  Custom Mailboxes

    testmail.app VS Mailtrap

     
  14. Ethereal Email icon

    Ethereal Email

     2 likes
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    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.

    25 Ethereal Email alternatives

    License model

    • Free • Proprietary

    Application type

    Platforms

    • Online
    Email preview screen

    Ethereal Email Features

    1.  SMTP Support
    2.  IMAP Support
    3.  POP3 Support
    4.  Email testing

    Ethereal Email VS Mailtrap

     
12 of 29 Mailtrap alternatives