Software Alternatives, Accelerators & Startups


NaSMail is a standards-based webmail package written in PHP.

NaSMail Alternatives

The best NaSMail alternatives based on verified products, community votes, reviews and other factors.
Filter: 7 Open-Source Alternatives Latest update:

  1. 32

    Horde Groupware is a free, enterprise ready, browser based collaboration suite.

  2. 30

    Mailo is an email client where you can send and receive emails to and from anyone with an email address.

  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.

    Visit website paid $19.5 / Monthly (Pro)

    Visit website
  4. 30

    Email at its best, new from Basecamp.

    paid Free Trial $99.0 / Annually

  5. 32

    Soverin is the honest email service that doesn’t sell your data.

  6. 33

    Disposable email address application.

  7. 28

    Webmail service. Powered by RainLoop.

  8. 33

    NeoMail is a web-based mail client that allows users to access their mail spools and send messages.

  9. 20

    Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.

    Open Source

  10. 28

    All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail.

    Open Source

  11. 31

    Save time and scale faster with accessible, secure, and reliable cloud email services. A proven multitenant email solution for telcos and service providers.

    freemium $1.3 / Monthly (Per mailbox)

  12. 29

    Independent, secure, and easy to use email address.

  13. 32

    NOCC is a webmail client written in PHP. It provides webmail access to IMAP and POP3 accounts.

  14. 28

    Self-hosted server for the ProtonMail client.

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