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Microsoft Outlook alternatives · Email

Microsoft Outlook alternatives with a Linux app

The Microsoft Outlook listing does not include a Linux app. 9 of the 51 other email apps in this directory list a Linux app.

Microsoft Outlook has a free plan. Paid plans start at $1.99 per month, or $19.99 per year (Microsoft 365 Basic). 7 of them are free or have a free plan.

9 tools · Listings checked up to Oct 6, 2026 · Where the facts come from

How each one differs from Microsoft Outlook

  1. Thunderbird

    Free, open-source email app for Windows, macOS, Linux and Android

    • Thunderbird is free. Microsoft Outlook starts at $1.99 per month, or $19.99 per year (Microsoft 365 Basic).
    • Only Thunderbird lists a Linux app.
    • Only Microsoft Outlook lists a web app.
    • Only Microsoft Outlook lists an iOS app.
    Thunderbird vs Microsoft OutlookThunderbird pricing and details

  2. Mailspring

    Open-source desktop email client for Mac, Windows and Linux

    • Mailspring starts at $8 per month, or $85 per year (Mailspring Pro). Microsoft Outlook starts at $1.99 per month, or $19.99 per year (Microsoft 365 Basic).
    • Only Mailspring lists a Linux app.
    • Only Microsoft Outlook lists a web app.
    • Only Microsoft Outlook lists iOS and Android apps.
    Mailspring vs Microsoft OutlookMailspring pricing and details

  3. Zoho Mail

    Ad-free business email hosting with calendar, tasks and notes

    • Zoho Mail starts at $1 per user / month, billed annually (Mail Lite, 5 GB). Microsoft Outlook starts at $1.99 per month, or $19.99 per year (Microsoft 365 Basic).
    • Only Zoho Mail lists a Linux app.
    • Microsoft Outlook also covers inbox filtering.
    Zoho Mail vs Microsoft OutlookZoho Mail pricing and details

  4. BlueMail

    Cross-platform email client with a unified inbox and built-in AI

    • BlueMail starts at $35.99 per year (Plus, shown as $3 per month billed annually). Microsoft Outlook starts at $1.99 per month, or $19.99 per year (Microsoft 365 Basic).
    • Only BlueMail lists a Linux app.
    • Only Microsoft Outlook lists a web app.
    • BlueMail is end-to-end encrypted, according to its own site.
    BlueMail pricing and details

  5. Newton Mail

    Cross-platform email app with read receipts, snooze and send later

    • Newton Mail starts at $5 per month, billed annually ($6.99 billed monthly). Microsoft Outlook starts at $1.99 per month, or $19.99 per year (Microsoft 365 Basic).
    • Only Newton Mail lists a Linux app.
    • Only Microsoft Outlook lists a web app.
    • Newton Mail also covers templates and shared inbox.
    Newton Mail pricing and details

  6. HEY

    Email service and calendar with sender screening, from 37signals

    • HEY starts at $99 per year (HEY for You, annual billing only). Microsoft Outlook starts at $1.99 per month, or $19.99 per year (Microsoft 365 Basic).
    • Microsoft Outlook has a free plan. HEY does not, though it has a free trial.
    • Only HEY lists a Linux app.
    • HEY also covers templates.
    HEY pricing and details

  7. Proton Mail

    End-to-end encrypted email service based in Switzerland

    • Proton Mail starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly. Microsoft Outlook starts at $1.99 per month, or $19.99 per year (Microsoft 365 Basic).
    • Only Proton Mail lists a Linux app.
    • Proton Mail is open source and end-to-end encrypted, according to its own site.
    • Microsoft Outlook also covers tasks and inbox filtering.
    Proton Mail pricing and details

  8. Fastmail

    Paid, ad-free email with calendar, contacts and custom domains

    • Fastmail starts at $3 per user / month, billed yearly (Basic); Individual is $5, billed yearly. Microsoft Outlook starts at $1.99 per month, or $19.99 per year (Microsoft 365 Basic).
    • Microsoft Outlook has a free plan. Fastmail does not, though it has a free trial.
    • Only Fastmail lists a Linux app.
    • Microsoft Outlook also covers tasks and inbox filtering.
    Fastmail pricing and details

  9. Tuta Mail

    End-to-end encrypted email and calendar from Germany

    • Tuta Mail starts at €3 per month, paid yearly (lowest paid personal plan). Microsoft Outlook starts at $1.99 per month, or $19.99 per year (Microsoft 365 Basic).
    • Only Tuta Mail lists a Linux app.
    • Tuta Mail is open source and end-to-end encrypted, according to its own site.
    • Microsoft Outlook also covers tasks and inbox filtering.
    Tuta Mail pricing and details

Common questions

Which Microsoft Outlook alternatives have a Linux app?

Thunderbird, Mailspring, Zoho Mail, BlueMail, Newton Mail, HEY, Proton Mail, Fastmail and 1 more list a Linux app.

Does Microsoft Outlook have a Linux app?

The Microsoft Outlook listing does not include a Linux app. It lists Web, macOS, Windows, iOS and Android.

Which of these email apps are free?

Thunderbird, Mailspring, Zoho Mail, BlueMail, Newton Mail, Proton Mail and Tuta Mail 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 Oct 6, 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 Microsoft Outlook: the alternatives its listing names first, then the tools that share the most features with it.