Installing Mailspring on Linux is refreshingly simple, which is good news because nobody wakes up excited to fight package managers before coffee. Mailspring is a modern desktop email client for Linux, macOS, and Windows, built for users who want a clean inbox, multiple account support, fast search, desktop notifications, themes, templates, and a unified place to tame the daily email jungle.
Whether you use Ubuntu, Debian, Linux Mint, Fedora, openSUSE, Arch-based distributions, or another Linux flavor, there are several practical ways to install Mailspring. The easiest route for most users is Snap. Flatpak is also a strong option, especially if you already use Flathub. Users on Debian-based systems can install the .deb package, while Fedora and other RPM-based users can install the .rpm package from the official Mailspring release page.
This guide walks you through each method step by step, explains which one you should choose, and includes troubleshooting tips for common Linux desktop issues such as missing keyrings, dependency warnings, and launch problems. By the end, you will have Mailspring installed, connected to your email account, and ready to rescue your inbox from chaos.
What Is Mailspring?
Mailspring is a desktop email app designed for people who want a polished, fast, and organized email experience without living inside a browser tab all day. It supports major email providers such as Gmail, Outlook.com, Office 365, Yahoo, iCloud, Fastmail, and standard IMAP/SMTP accounts. That means you can connect personal, work, school, and side-project email accounts in one app instead of playing browser-tab whack-a-mole.
The app includes a unified inbox, conversation view, email search, mail rules, templates, signatures, themes, and native Linux desktop integration. Mailspring also uses a C++ sync engine, which helps keep it lighter than older Electron-style email clients that behaved like they were training for a memory-eating contest.
Before You Install Mailspring On Linux
Before installing, check three things: your Linux distribution, your preferred package system, and whether your desktop environment has a working keyring. Mailspring stores email credentials in your system keychain or keyring, so a missing keyring can prevent account setup or trigger password storage errors.
Recommended Installation Methods
If you are unsure which option to choose, use this simple guide:
- Ubuntu, Debian, Linux Mint: Snap, Flatpak, or
.deb - Fedora, RHEL, openSUSE: Snap, Flatpak, or
.rpm - Arch, Manjaro, EndeavourOS: Flatpak, Snap, or community packages if available
- Universal method: Flatpak or Snap
For beginners, Snap is usually the fastest path. For users who prefer sandboxed apps and already use Flathub, Flatpak is excellent. For people who want a traditional native package, the .deb or .rpm file is the better fit.
Method 1: Install Mailspring On Linux Using Snap
Snap is one of the easiest ways to install Mailspring because it bundles the app with many of the dependencies it needs. Snaps also update automatically, which is helpful if you are the kind of person who says “I’ll update it later” and then later becomes three presidential administrations.
Step 1: Make Sure Snap Is Installed
On Ubuntu, Snap is usually installed by default. On Debian, Linux Mint, Fedora, or other distributions, you may need to install snapd first.
On Ubuntu or Debian-based systems, run:
On Fedora, run:
After installing Snap, restart your computer or log out and back in so your desktop session recognizes Snap applications properly.
Step 2: Install Mailspring With Snap
Once Snap is ready, install Mailspring with:
After installation, launch it from your application menu or run:
Why Choose Snap?
Snap is a good choice if you want the simplest install command and automatic updates. It is especially convenient on Ubuntu-based systems. The only downside is that some users prefer not to use Snap because of startup time, sandbox behavior, or personal package-management preferences. Linux users having preferences? Shocking, I know.
Method 2: Install Mailspring On Linux Using Flatpak
Flatpak is another universal Linux packaging system. It works across many distributions and installs apps from Flathub, one of the most popular Linux app repositories. If your system already uses Flatpak, installing Mailspring this way is clean and reliable.
Step 1: Install Flatpak
On Ubuntu or Debian-based systems, install Flatpak with:
On Fedora, Flatpak is often installed by default. If not, run:
Step 2: Add Flathub
If Flathub is not already enabled, add it with:
Restart your session after adding Flathub so your software center and application menu can detect Flatpak apps correctly.
Step 3: Install Mailspring From Flathub
Now install Mailspring:
Launch it with:
Why Choose Flatpak?
Flatpak is ideal if you want a distribution-independent install method with good desktop integration. It is popular among Fedora, Linux Mint, GNOME, KDE, and many desktop Linux users. It also keeps applications separated from some system files, which many users appreciate for stability and security.
Method 3: Install Mailspring On Ubuntu, Debian, Or Linux Mint Using A DEB Package
If you prefer native packages, the official Mailspring download page and GitHub releases provide Debian packages for Ubuntu, Debian, Linux Mint, Pop!_OS, Zorin OS, elementary OS, and other Debian-based distributions.
Step 1: Download The DEB File
Download the latest .deb package from the official Mailspring website or the official GitHub releases page. Save it to your Downloads folder.
Step 2: Install The DEB Package
Open a terminal and move into your Downloads folder:
Then install the package with:
Using apt install ./package.deb is recommended because APT can handle dependencies better than installing with dpkg alone.
Step 3: Launch Mailspring
After installation, open your application launcher and search for “Mailspring.” You can also try:
Fix Missing Dependencies After DEB Installation
If you used dpkg and saw dependency errors, run:
Then try launching Mailspring again.
Method 4: Install Mailspring On Fedora, RHEL, Or openSUSE Using An RPM Package
RPM packages are useful for Fedora, Red Hat Enterprise Linux, Rocky Linux, AlmaLinux, openSUSE, and similar distributions. Mailspring provides RPM builds through official release channels.
Step 1: Download The RPM File
Download the latest .rpm package from the official Mailspring download page or GitHub releases page. Place it in your Downloads folder.
Step 2: Install On Fedora
On Fedora, use:
DNF will read the local RPM file and attempt to resolve required dependencies.
Step 3: Install On openSUSE
On openSUSE, use:
After installation, open Mailspring from your app menu.
Setting Up Mailspring After Installation
Once Mailspring opens, you will be guided through the initial setup. You can sign in with a Mailspring ID or continue through the setup flow depending on the version and available options. Then you can add your email account.
Add An Email Account
Choose your provider from the account setup screen. Common options include Gmail, Outlook.com, Office 365, Yahoo, iCloud, Fastmail, and IMAP/SMTP. For Gmail and Microsoft accounts, you may be redirected to a browser to authorize access. For standard IMAP accounts, you may need your incoming and outgoing mail server settings.
Enable Your System Keyring
Mailspring stores email credentials securely in your system keyring. On GNOME-based desktops, this is often handled by GNOME Keyring. On KDE Plasma, you may need KWallet or a compatible keyring setup. If Mailspring says it cannot store your password securely, install or configure a keyring package.
On Ubuntu or Debian-based systems, try:
On Fedora, try:
After installing keyring packages, log out and back in, then relaunch Mailspring.
How To Update Mailspring On Linux
The update process depends on how you installed the app.
Update Snap Version
Snaps update automatically, but you can manually refresh Mailspring with:
Update Flatpak Version
For Flatpak, run:
Update DEB Or RPM Version
If you installed Mailspring using a downloaded .deb or .rpm file, download the newest package and install it over the existing version. Your account settings should normally remain in your user profile, but it is always smart to keep important email available on the server before making changes.
How To Uninstall Mailspring On Linux
Removing Mailspring is just as easy as installing it. Use the command that matches your installation method.
Uninstall Snap Version
Uninstall Flatpak Version
Uninstall DEB Version
To remove configuration files as well, use:
Uninstall RPM Version
On Fedora, run:
On openSUSE, run:
Common Mailspring Installation Problems And Fixes
Mailspring Does Not Launch
If Mailspring does not open from the menu, run it from the terminal. Terminal output often reveals missing libraries, sandbox problems, or permission issues. For Snap, try snap run mailspring. For Flatpak, try flatpak run com.getmailspring.Mailspring.
Password Storage Error
A common issue is the message that Mailspring cannot store your password securely. This usually means your desktop keyring is missing, locked, or not starting with your session. Install gnome-keyring and libsecret, restart your session, and try again.
Gmail Or Outlook Login Fails
If OAuth login fails, check that your default browser opens correctly. Also make sure your system time is accurate. Authentication services can reject login attempts when your clock is wildly wrong. Yes, even your email app has opinions about time travel.
IMAP Account Will Not Connect
For custom IMAP accounts, verify your incoming server, outgoing SMTP server, port numbers, encryption type, and password. Some providers require app passwords instead of your normal login password, especially if two-factor authentication is enabled.
Which Installation Method Is Best?
For most Linux users, Snap is the easiest way to install Mailspring. It is quick, simple, and auto-updating. Flatpak is the best choice if you prefer Flathub or want a universal app format that works nicely across distributions. The .deb package is best for Ubuntu, Debian, and Linux Mint users who like traditional system packages. The .rpm package is best for Fedora and openSUSE users who want native package-manager integration.
Here is the practical answer: if you are new to Linux, use Snap or Flatpak. If you are comfortable with your package manager, use the native .deb or .rpm. If you enjoy arguing about package formats online, congratulations, you are officially a Linux user.
Real-World Experience: Installing And Using Mailspring On Linux
In everyday Linux use, Mailspring feels like one of those apps that tries to make the desktop email experience less gloomy. The installation itself is usually uneventful, especially with Snap or Flatpak. On Ubuntu, the Snap command is the fastest path from “I need an email client” to “I am deleting newsletters with heroic confidence.” On Fedora, Flatpak often feels natural because many Fedora users already have Flatpak support ready to go. On Linux Mint, both Flatpak and DEB installation are comfortable choices, though beginners may find the software-center approach less intimidating than the terminal.
The biggest lesson from installing Mailspring across Linux systems is that the package format matters less than the desktop environment around it. GNOME users usually have a smoother first launch because the keyring pieces are commonly installed and active. KDE Plasma users may occasionally need to check KWallet or install compatible keyring components. Minimal window managers can require extra setup because they do not always start a keyring automatically. That is not Mailspring being dramatic; it is simply asking for a safe place to store passwords.
Using Mailspring after installation is pleasant if you manage several inboxes. The unified inbox is the star feature because it lets you see mail from multiple accounts without switching tabs, browsers, or mental personalities. Search is fast enough for normal daily work, and the interface looks more polished than many traditional Linux email clients. If Thunderbird feels too heavy for your taste or browser-based email feels too distracting, Mailspring lands in a comfortable middle ground.
There are still a few practical habits worth following. First, always install Mailspring from official or trusted package sources. Email clients handle sensitive data, so downloading random builds from mysterious corners of the internet is a terrible idea unless your hobby is inviting chaos to brunch. Second, keep your system updated. Authentication methods for Gmail, Outlook, Yahoo, and iCloud can change, and an updated client is less likely to run into login headaches. Third, know whether your provider requires app passwords. Many account problems are not caused by Mailspring at all; they come from modern security settings on the provider side.
The best experience comes from pairing Mailspring with a clean desktop notification setup. Turn on notifications for important accounts, but do not let every promotional email shout at you like it has breaking news. Configure signatures early, add useful templates if you send repeated replies, and spend a few minutes adjusting themes and layout. Those small changes make Mailspring feel less like a generic email app and more like a personal command center.
If you use a laptop, pay attention to startup behavior and background syncing. Mailspring is designed to be efficient, but any email client can become noisy if you connect several huge inboxes. Start with one or two accounts, confirm everything syncs correctly, and then add more. This careful approach makes troubleshooting easier. If five accounts are added at once and something breaks, finding the culprit becomes a tiny detective novel, except nobody gets paid and the villain is usually an incorrect IMAP port.
Overall, installing Mailspring on Linux is straightforward, and the app is especially appealing for users who want a modern interface without giving up the control of a desktop client. Snap and Flatpak make installation accessible, while DEB and RPM packages keep traditional Linux users happy. Once the keyring is working and your accounts are connected, Mailspring becomes a clean, capable hub for handling daily email without turning your browser into a tab-shaped swamp.
Conclusion
Learning how to install Mailspring on Linux is simple once you choose the right package format for your system. Ubuntu and Debian users can use Snap, Flatpak, or the official DEB package. Fedora and openSUSE users can use Flatpak, Snap, or RPM. The most important step after installation is making sure your system keyring works correctly, because Mailspring depends on it to store email credentials securely.
If you want the easiest install, choose Snap. If you want a universal Linux app from Flathub, choose Flatpak. If you prefer native package management, choose DEB or RPM. Either way, Mailspring gives Linux users a polished email client with unified inbox support, modern design, and enough productivity features to make your inbox feel slightly less like a haunted filing cabinet.
