Software Alternatives, Accelerators & Startups

Mailtrap

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

Some of the top features or benefits of Mailtrap are: Automated Testing, HTML/CSS Check, Spam Analysis, Deliverability Alerts, Email Categories, Knowledge Base, and Support System. You can visit the info page to learn more.

Mailtrap

Mailtrap Alternatives & Competitors

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

  1. 48

    Email Testing for QA & Development Teams.

    Key Mailosaur features:

    Ease of Use API Integration Realistic Testing Comprehensive Documentation

    /mailosaur-alternatives
  2. 50

    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
  3. Mailtester Ninja: The Best Email Verification Software.

    Key Mailtester Ninja features:

    Emails checked per day API calls per day

    Try for free freemium $3.99 / Monthly (100k emails checked per day)

    Try for free
  4. 38

    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
  5. 37

    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
  6. 17

    litmus tests and tracks your email campaigns, so you can always put your best design forward.

    Key Litmus features:

    Email Previews Spam Testing Analytics Integration Capabilities

    /litmus-alternatives
  7. 33

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

    Key FakeSMTP features:

    Ease of Use Free and Open Source No Email Sending Local Testing

    /fakesmtp-alternatives
  8. Validate Emails. Guaranteed Deliverability.

    Key Verifi.Email features:

    Validate Single Email Addresses Validate Email Lists Validate Emails with API Works with No-Code Tools

    freemium

    /verifi-email-alternatives
  9. 20

    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
  10. 12

    We make the send button safer. For every campaign, every message, and every inbox, Email on Acid has the time-saving tools you need to put your best email forward.

    Key Email on Acid features:

    Comprehensive Email Previews Advanced Spam Testing Collaboration Tools Detailed Analytics

    paid Free Trial $73.0 / Monthly (With a year subscription)

    /email-on-acid-alternatives
  11. 14

    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
  12. 24

    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
  13. Unbounce lets marketers and businesses build, publish and test landing pages without IT or software. AI enhanved A/B testing and lead gen make it a powerful marketing tool.

    Key Unbounce features:

    Landing Page Builder AI Technology A/B Testing Website Conversions

    freemium $79.0 / Monthly

    /unbounce-alternatives
  14. Zyntra is a disposable email platform for QA teams and test automation workflows. It helps you capture, assert, and validate email content as part of your end-to-end tests — without manual setup or flaky workarounds.

    freemium $9.0 / Monthly (10000 e-mails)

    /zyntra-app-alternatives
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