Software Alternatives & Reviews

Email Collaboration Software

The best Email Collaboration Software based on votes, our collection of reviews, verified products and a total of 87 factors

Top Email Collaboration Products

  1. Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

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

  3. Featured

    Work easier and boost your revenue and profits with Kirmada. This is how Workspaces are *meant* to be! Efficient, time-tracked, socially integrated and shareable. All with no learning curve.

    Try for free paid Free Trial £19.95 / Monthly (Per User. Ask for multi-user discounts.)

  4. End-to-end encrypted chat built into Keybase

  5. Keep your conversations secure, everywhere.

  6. Protect your privacy with unique email aliases

  7. ZeroNet authentication provider

  8. Spike turns email into simple conversations, so you can work and collaborate seamlessly with clients and team members - in a more natural way. Welcome to the future of email.


  9. ZeroNet. Open, free and uncensorable websites, using Bitcoin cryptography and BitTorrent network. Download for Windows 9. 6MB · Unpack · Run ZeroNet. exe.

  10. Encrypted text and voice chat for passionate communities

  11. Super simple chat in your browser 💬

  12. Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues

  13. Airmail is a lightweight and lightning fast mail client for Mac.

  14. Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.

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News from the blogs of product alternatives mentioned above
  • Through the Leader’s Lens: Interview with Pratik Thakker, CEO & Founder of INSIDEA
    28 Sep 2023 · Spike App · Read here
  • Airmail Soars to New Heights with iOS 17 Compatibility
    13 Sep 2023 · Airmail · Read here
  • Introducing Spark +AI: your personal email assistant
    23 May 2023 · Spark · Read here
  • France 2030: Seald is a laureate alongside Wimi 🏆
    26 Apr 2023 · Seald · Read here
  • NEW Zimbra Patches: 9.0.0 Patch 22 + 8.8.15 Patch 29
    15 Dec 2021 · Zimbra · Read here