Software Alternatives, Accelerators & Startups

MailGenius

Free Email Spam Checker & Testing Tool.

Best MailGenius Alternatives & Competitors in 2025

The best MailGenius alternatives based on verified products, community votes, reviews and other factors.
Filter: 2 Open-Source Alternatives. Latest update:

  1. G-Lock Apps is an interesting tool that might seem simple to some, but is quite essential to most online marketers.

    /glockapps-alternatives
  2. Maool Email Editor : Create beautiful emails in less time with no coding knowledge.

    /maool-email-editor-alternatives
  3. Payroll and compliance for international teams

    Visit website freemium $49.0 / Monthly (per contractor)

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

    /litmus-alternatives
  5. No More Newsletters In Your Inbox

    /followletter-alternatives
  6. An online suggestion box for employees

    /vetter-alternatives
  7. Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.

    /brevo-alternatives
  8. Folderly is an all-in-one email deliverability platform to supercharge your email performance. Locate, solve, prevent email deliverability pitfalls, and ensure that your emails reach the Inbox folder.

    Open Source paid Free Trial $120.0 / Monthly (Folderly Premium)

    /folderly-alternatives
  9. MailChimp is the best way to design, send, and share email newsletters.

    /mailchimp-alternatives
  10. Stripo is an all-in-one email design platform. We enable our clients to build emails of any complexity, including interactive AMP emails, really fast and easy.

    freemium $20.0 / Monthly

    /stripo-alternatives
  11. 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.

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

    /email-on-acid-alternatives
  12. Learn why more developers choose SendGrid for their email deliverability service to send transactional emails triggered by web apps. Get started for free

    /sendgrid-alternatives
  13. Email spam checker and newsletter heatmap prediction.

    /unspam-email-alternatives
  14. We're on a mission to spread DMARC across the globe to make email and the internet safer for all.

    paid Free Trial

    /dmarcian-alternatives
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