Browse free open source Email Servers and projects for Windows below. Use the toggles on the left to filter open source Email Servers by OS, license, language, programming language, and project status.

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
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  • 1
    Zeus:DB
    Zeus:DB is a all-in-one server solution. Zeus:DB is a fast and light weight XML Database Server with SQL support, a Time Server, a HTTP Server with integrated Intranet support and an EMail Server. This is a complete solution like the Lotus Domino server.
    Downloads: 0 This Week
    Last Update:
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