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Mailspring review

Freemium#8 of 142 in Email Clients

A capable open desktop client with unified inboxes and optional productivity features.

8.6/10Editor score
Visit Mailspring
Mailspring8.6 Visit Mailspring

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Mailspring is a native desktop email client for people managing multiple accounts across macOS, Windows, or Linux. Its free plan covers core email functionality, multi-account support, and a unified inbox, while also providing advanced search, custom signatures, spell and grammar checking, offline reading and composing, and calendar invitation details with RSVP actions. It suits users who want one open-source desktop application for several personal or work inboxes.

Pricing is straightforward. The Free plan includes the core client, multi-account support, and unified inbox access. Mailspring Pro costs $8 per month and adds read receipts, link tracking, send later, follow-up reminders, templates, and message snoozing. Mailspring Pro Annual costs $85 per year and includes unlimited use of Pro features with no limit on connected email accounts. The free tier is a credible choice for standard email management; the paid plans are aimed at users who regularly need workflow features around timing, follow-up, and message visibility.

Its ecosystem coverage is broad for a desktop client: connections include Gmail, iCloud, Microsoft Office 365, FastMail, Outlook.com, Yahoo, IMAP/SMTP, CalDAV, and CardDAV. Scheduled sending, queued delivery, offline access, quick replies, and calendar invitation actions give it useful productivity depth without replacing a full calendar application. Users seeking a desktop-first, multi-account inbox should find the feature mix well aligned. Those who need mobile apps, a full-featured calendar today, or advanced features without a subscription should consider a different email client.

Mailspring pros and cons

  • Where it wins
    • Unified inbox and search across connected email accounts
    • Works on macOS, Windows, and Linux with offline access
    • Pro adds scheduling, tracking, reminders, templates, and snoozing
  • Where it doesn't
    • Advanced productivity features require a paid Pro plan
    • Focused on desktop rather than mobile email access
    • Full-featured calendar support is still planned

Mailspring fact sheet, pricing and score →

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