A native desktop app for Mac, Windows, and Linux — with multi-account support, read receipts, link tracking, send later, and more. Free for everything you need. Pro features at $8/month.
Trusted by 800,000+ users on Mac, Windows, and Linux.
Trusted by professionals at
Mailspring indexes your mail so you can use advanced, Gmail-style search queries and search message contents across all your connected accounts. Never lose an email again. Learn More
Your signature should leave a lasting impression. Mailspring's beautiful signature editor makes it easy to create custom signatures, complete with images and links to social media profiles. See How
Using a single inbox for all of your email accounts helps you get more done in less time. Mailspring supports every major mail provider—Gmail, iCloud, Office 365, FastMail, Outlook.com, Yahoo!, and IMAP/SMTP—so you have a single, streamlined command center for all your messages.
Business happens in every language. Mailspring can translate messages written in English into Spanish, Russian, simplified Chinese, French, and German—right inside your draft.
Receive email in other languages? Mailspring will offer to translate incoming emails into your language, and you can configure it to run automatically.
Mailspring auto-detects the language you're writing in and checks spelling automatically. The composer also includes grammar checking powered by LanguageTool — catching not just typos but awkward phrasing and grammatical errors before you send. The kind of mistake that matters when email is how you manage relationships.
Mailspring has been translated into German, French, Spanish, Korean, Japanese, Chinese, Polish and Brazilian Portuguese by volunteer contributors and machine-translated into 60 more languages so you'll feel right at home. A right-to-left layout for Hebrew and Arabic ensures it blends in to your desktop.
When you receive event invitations by email, Mailspring displays the details and lets you RSVP without leaving your inbox. A full-featured calendar — with Day View, Agenda View, and drag-to-reschedule — is coming later this year.
Mailspring feels native on every platform because it integrates deeply with each one. On Windows, it supports taskbar badges, jump lists, and system notifications. On macOS, notifications and system behaviors work exactly as expected. On Linux, it integrates with your system tray, respects Do Not Disturb, and runs natively on both X11 and Wayland.
Mailspring includes multiple layouts and themes — including a full dark mode — so you can make it look exactly the way you want.
Stop guessing what happens after you send. Mailspring Pro adds read receipts, link tracking, send later, follow-up reminders, and templates — everything you need to send email with confidence and follow up at the right moment.
Mailspring Pro removes the limits in the free version, so you can snooze messages, schedule reminders, and send later an unlimited number of times and conquer your inbox.
Understanding your contacts and customers is the key to connecting with them. Mailspring provides the context you need right beside your emails. Enriched contact profiles include bios, links to social profiles, your previous conversations and more.
Mailspring also digs deep and retrieves company info including office timezones, headcount, fundraising status, and more. See HowActivity tracking is built into Mailspring so you get notified as soon as contacts read your messages and can follow up appropriately.
How contacts engage with your content gives you insight into what's working and what's not. Mailspring can notify you when your links are clicked so you know what's generating interest. See How
Typing common emails over and over is a drag—and when you send outreach that works, you want to reuse it. Mailspring's quick reply templates let you create a library of customizable emails that are at your fingertips every time you send.
Mailspring's Activity tab shows a breakdown of your email activity, including the time of day you receive the most email and the click and open rates of your tracked outbound messages. Identify your most effective subject-lines and templates at a glance to optimize your messaging.
800,000+ downloads since launch.
Mailspring is built and maintained by Foundry376 — a small, independent team with no outside investors. We build for our users, not a board.
The full codebase is open-source under the MIT license. Anyone can read it, contribute to it, and verify exactly how their email is handled.
Mailspring syncs directly via IMAP, CalDAV and CardDAV — your email goes straight from your mail provider to your machine, not through our servers.
Fast, reliable, and actively maintained.
Pro Features