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Spark Mail alternatives · Email

Self-hosted alternatives to Spark Mail

The Spark Mail listing does not say it can be self-hosted. 6 of the 73 other email apps in this directory can be self-hosted, according to their own sites.

Spark Mail has a free plan. Paid plans start at $8.25 per user / month, billed annually ($99 / year). 4 of them are free or have a free plan.

6 tools · Listings checked up to Nov 12, 2026 · Where the facts come from

How each one differs from Spark Mail

  1. Inbox Zero

    Open source AI email assistant for Gmail and Outlook

    • Inbox Zero starts at $18 per user / month, billed annually ($20 billed monthly). Spark Mail starts at $8.25 per user / month, billed annually ($99 / year).
    • Spark Mail has a free plan. Inbox Zero does not, though it has a free trial.
    • Only Inbox Zero lists a web app.
    • Only Inbox Zero lists a browser extension.
    Inbox Zero pricing and details

  2. Zero Mail

    Open-source AI email client that connects your existing inboxes

    • Zero Mail starts at $20 per month (billing basis not shown). Spark Mail starts at $8.25 per user / month, billed annually ($99 / year).
    • Only Zero Mail lists a web app.
    • Only Spark Mail lists macOS, Windows, iOS and Android apps.
    • Zero Mail is open source and self-hostable, according to its own site.
    Zero Mail pricing and details

  3. Zimbra

    Self-hosted email, calendar and file sharing for organizations

    • Spark Mail has a free plan. Zimbra does not.
    • Only Zimbra lists a web app.
    • Only Zimbra lists a Linux app.
    • Zimbra is open source and self-hostable, according to its own site.
    Zimbra pricing and details

  4. Roundcube

    Free open-source webmail client you host yourself

    • Roundcube is free. Spark Mail starts at $8.25 per user / month, billed annually ($99 / year).
    • Only Roundcube lists a web app.
    • Only Spark Mail lists macOS, Windows, iOS and Android apps.
    • Roundcube is open source and self-hostable, according to its own site.
    Roundcube pricing and details

  5. SimpleLogin

    Open-source email aliases that forward to your own inbox

    • SimpleLogin starts at $36 per year ($4 billed monthly). Spark Mail starts at $8.25 per user / month, billed annually ($99 / year).
    • Only SimpleLogin lists a web app.
    • Only SimpleLogin lists a browser extension.
    • Only Spark Mail lists macOS and Windows apps.
    SimpleLogin pricing and details

  6. addy.io

    Email alias forwarding that hides your real address from sites

    • addy.io starts at $1 per month, billed yearly (Lite). Spark Mail starts at $8.25 per user / month, billed annually ($99 / year).
    • Only addy.io lists a web app.
    • Only addy.io lists a browser extension.
    • Only Spark Mail lists macOS and Windows apps.
    addy.io pricing and details

Common questions

Is there a self-hosted alternative to Spark Mail?

Yes. Inbox Zero, Zero Mail, Zimbra, Roundcube, SimpleLogin and addy.io can be self-hosted, according to their own sites.

Can Spark Mail be self-hosted?

The Spark Mail listing does not say it can be self-hosted. The listing was checked on Oct 4, 2026 against the pages it cites.

Which of these email apps are free?

Zero Mail, Roundcube, SimpleLogin and addy.io are free or have a free plan.

When was this checked?

Each listing shows its own date. On this page they run from Oct 4, 2026 to Nov 12, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Spark Mail: the alternatives its listing names first, then the tools that share the most features with it.