Open source email client for windows. DIY open-source email security tool for Windows.

Open source email client for windows 12/21/24. If that doesn't suit you, our users have ranked more than 50 alternatives to Thunderbird and 19 are open source and available for Windows so hopefully you can find a suitable replacement. 1/11/25. ⚠️ Nylas Mail was initially released and open-sourced in early 2015 and was maintained by Nylas until Spring 2017. It makes it easy and fast for you to work with large email accounts. Topics The comprehensive Arduino Email Client Library to send and read Email for Arduino devices. This page is powered by Best text-based e-mail clients Price Platforms Search--Mutt. This free, open source, and cross-platform email client developed by the Mozilla Foundation is available in 59 languages N1. Geary's my go-to client because it's simple, easy to use, and doesn't get bogged down trying to be more than it is. - Can a Linux app be a default mail client on Windows and actually load and open up a blank email (With the recipients, a subject line, and/or a webpage link pre-populated when it would be for a Windows-native email client) The appearance and interface are designed to be familiar to new users coming from other popular email clients, as well as experienced users. 3 Top Open Source Email Clients for Windows 10 in 2025; 15 Top Open Source Email Servers for Windows 11 in 2025; The 15 amazing free and open-source email servers for Desktop with setup guides, tutorials, videos, and instructions. Mozilla Thunderbird is a free, open-source email client known for its customization options and robust privacy features. AI-powered developer platform The GNOME Project is a free and open source desktop and computing platform for open platforms like Linux that strives to be an easy and elegant way to use your computer. 99/YR: MacOS, iOS, Android: Yes--lumail. Modified 13 years, 6 months ago A community for sharing and promoting free/libre and open source software on the Android platform. About; News; Screenshots; Download; Plugins; is a browser-based multilingual IMAP client with an application-like user interface. Almost all commands are accessible with the keyboard. 30 Webmail Lite alternatives. Thunderbird is a free, open-source email client, perfect for power and casual users alike. We can integrate various email services such as s Gmail, Hotmail, and Microsoft Exchange as well as IMAP and POP synchronization. Keep these 15 points in mind when shortlisting an email client for your Windows PC: Support for mailbox providers: Ensure the client supports multiple email protocols (POP3 or IMAP) and can integrate seamlessly with popular email services like Gmail, Outlook, Yahoo, etc. Best mail client for Windows 11? The GNOME Project is a free and open source desktop and computing platform for open platforms like Linux that strives to be an easy and elegant way to use your computer. Mailbox is one of the most popular options for managing Microsoft Office 365 email accounts and is an open-source Top 13 Free and Open Source Email Client for Linux, Windows, Unix and macOS - includes feature comparison such as anti-spam, productivity and add-ons. Supported Platforms: Web, macOS, Windows, Linux; If you are looking to make your email experience easier, Thunderbird is the best desktop email client that will help you do so. Best email clients for Linux. Free: Windows, Linux, Mac, Android---Newton. You won't find a ton of features on Geary, but the features it has are 4 Top Open Source Email Clients for Webmail in 2025. DIY open-source email security tool for Windows. This means software you are free to modify and distribute, such as applications licensed under the GNU General Public License, BSD license, MIT license, Apache license, etc. Thunderbird has been around since 2003 and aims to be a lightweight, customizable email client. If you 5. The official description from its website says, "Claws Mail is an email client (and news reader), based on GTK+ Himalaya is an open-source email client for Terminal and is written in the Rust programming language. Easy to integrate with third party systems. In Comment summary: eM Client presents a clean interface with more built-in functions than Thunderbird, making it appealing for Mac and Windows users who prioritize design. Open-source email client, preferred by many over proprietary software. Typically, open source software can be used for free, but not always. Read more. Desktop Help Balsa is an open-source email client for AlmaLinux and is written in the C programming language. Change log AERC is a free, open-source terminal-based Windows, Mac, and Linux email client. However, users criticize it for being closed source, not supporting Linux, and having limited free accounts. Mailspring is an open-source email client for Linux hMailServer is a free, open source, e-mail server for Microsoft Windows. So, here are the best 5 open source desktop email clients that help you in organizing your emails which Best Open-Source Email Clients for Apple, Windows, and Linux (Desktop) Name Description Screenshot Platforms Language; K-9 Mail is an open source email client focused on making it easy to chew through large volumes of email. Mozilla Thunderbird is a free and open-source cross-platform email client that is compatible with Windows 11, so it can be really useful. Operated by MZLA Technologies Corporation, a subsidiary of the Mozilla Foundation, Thunderbird is an independent, community-driven project that is Open-source email client and server reviews, side by side comparisons, screenshots, and step by step setup tutorial guides. LucaMail is an open source, cross-platform email client. “eM Client” is feature-rich and simply one of the best email clients for Windows 10. Install Thunderbird: First of all, you’d better have the current version of Thunderbird installed on your computer. 1. Thunderbird for a free email client. Letterbox is still under development but you can soon K-9 Mail is an advanced, open-source email client for Android that's focused on making it easy to chew through large volumes of email. Mozilla Thunderbird is a free and open-source [8] email client that also functions as a personal information manager with a calendar and contactbook, as well as an RSS feed reader, chat client (IRC/XMPP/Matrix), and news client. Concerns include slow email rendering and potential phishing risks detected by antivirus BlueMail is a modern, mobile and desktop, powerful Email management tool with a sleek design, unified inbox and support for all your accounts: IMAP, Exchange,POP3. Compare the best free open source Windows Mail Transfer Agents at SourceForge. The 15 top free and open-source email servers for Windows with setup guides, tutorials, videos, and instructions. The application supports cloud storage, so you can easily synchronize data between all your computers. 8 - Build 2574 (495009 downloads since 2021-10-03. The library also supports other network shields or modules e. Thunderbird. 8 Best Linux Email Clients. e. May it rest in peace. Sylpheed runs on many systems such as Windows, Linux, BSD, Mac OS X and other Unix-like systems. Claws Mail is the most popular Windows & Linux alternative to Thunderbird. Best open-source email client upvotes K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more. Other interesting open source Windows alternatives to Microsoft Outlook are Mailspring, Betterbird, Claws Mail and Sylpheed. It has a clean design, with a dark theme and the option to customize colors. Alpine Mail is an Mailbird is a dedicated Windows-based email client software to manage all your emails & contacts. Industry Case Study. Best of all, Thunderbird is the only desktop email client that’s absolutely free of cost, and open source. Thunderbird is perfect for users who want a feature-rich experience. 3 Top Open Source Email Clients for Windows 10 in 2025. It's more open-source now; they just open-sourced the core mail syncing part of it (used to just be released as a binary blob). 3 Top Open Source Email Clients for Windows 10 in 2025; 15 Top Open Source Email Servers for Windows 11 in 2025; Maximize your email efficiency with the BEST Email Client App for Windows 10. The 15 top free and open-source email servers for Windows 11 with setup guides, tutorials, videos, and instructions. WinSCP is a popular free file manager for Windows supporting SFTP, FTP, FTPS, SCP, S3, WebDAV and local-to-local file transfers. 11/15/24. Open Thunderbird: Open the application and Email client name: Thunderbird: Great open source option for those looking to have a fast and secure mail client that is being updated by an army of developers devoting their free time to open Only Thunderbird is Open Source, there is a fundamental simple difference between freeware (as the other two seems to be) and open source that many seems to miss. Sylpheed is a free and open-source email client. Let's take a look at some of its features: The Windows Mail app is the default email client for Windows desktop devices. Free and open-source email client: Robust spam Sylpheed is a lightweight and cross-platform email client. Blog. It features excellent mail filter capabilities and management. It uses end-to-end encryption and offers full support for PGP. Mailbird is a free email client for Windows, Mac, and Linux. Learn about the leading open-source email app for Android. Explore. Elevate your productivity with these cutting-edge tools for efficient communication. ; Business plans start at $5. Free, secure and fast Windows Email Software downloads from the largest Open Source applications and software directory Tutanota is an open source email client focused on security and privacy. Users can manage contacts of more than one account using this tool. Other popular filters includes Windows + Open Source. Reviews, comparison, screenshots and more for the 3 top open-source email clients for Windows 10. So, after adding the -p switch, the next time you start Thunderbird it'll open a small window called "Choose User Profile" where you can create separate email account profiles and/or select an existing email account profile then click Start Thunderbird and it'll start it Open source Email clients - Open Source Software Directory - The best open source and free software for at home or in business. Wino is a lightweight native mail client for Windows 10/11. BlueMail is a free email client for A top email client for Windows 10 with a friendly user interface and extensive integration with social media. The fully customizable interface provides you with the much-needed freedom to personalize everything as per your needs. com, Windows Live Mail, Lotus Notes, Thunderbird, Office 365, etc Bred from the needs of the Linux desktop, ported to Windows Claws Mail is a lightweight, open-source email client that prioritizes simplicity, speed, and efficiency. Topics Trending Collections Enterprise Enterprise platform. Desktop Help I am never switching e-mail clients again! Max. $49. You'll be able to import your emails from almost any . I need mobile notifications! Anyone know of any good ones? Windows, macOS: Open source GUI Evolution: The GNOME Project: Unix-like: LGPL-2. It is well known for its flexibility and customization options. A powerful tool to enhance your productivity with a user-friendly interface and automation Meet the powerful email, calendar, and contacts app for Windows, Linux, and macOS. These programs download your email to your PC for you to read and otherwise interact with. N1 is an open-source mail client built on the modern web with Electron, React, and Flux. It supports POP (storing mail locally on your hard drive so that it can be accessed without an internet connection), and IMAP. First released in 2003, Thunderbird is hands down the best free email client for Windows 10 and 11. Open source email client apps mean anyone who install the apps should be able to see the source code of the apps, whatever the purpose. Free: Windows, macOS, Linux: Yes: 64. It is ideal for users who value control over their email It is a state-of-the-art open-source email client windows which integrates well with widely utilized email providers like Gmail. An open source email client for Windows. This free, open source, and cross-platform email client developed by the Mozilla Try Web Client. The official description from its website says, "Balsa is an e-mail client for GNOME, highly configurable and incorporating all the Gnome EVOLUTION email client and calendar ported to MSYS2/MinGW64 using GTK. Pricing. Compare the best free open source Windows Email Software at SourceForge. "Low resource client" is the primary reason people pick Claws Mail over the competition. 1/1/25. It’s cross-platform, available on Windows, Mac OS, and Linux. Published. Image Source It's like Windows Mail, which comes with Windows, or Microsoft Office's Outlook program. Supports multiple protocols such as SMTP, POP3, LMTP, IMAP, and ManageSieve. Discover the top 13 Windows email clients in 2025. eM Client for customization. Sylpheed provides intuitive user-interface. It allows users to manage multiple email accounts from a single platform and works with the major desktop operating systems, including Windows It is a top free open source mail client which gets used by Windows and MAC clients mostly. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Evolution. Now that we know what to look for when choosing an email client for a Linux machine, here are the 8 best linux email clients we could find. eM Client is a fully-featured email client with a clean and easy-to-use interface. Pricing: Mozilla Thunderbird is a free and open-source email client. AERC stands for “Aerc Email Client” and is exclusively designed for the terminal or command-line interface. A faster, leaner email client and fork of Nylas Mail. NOTE: No active development hMailServer is no longer being actively developed. Mailspring is free to There are many alternatives to Thunderbird for Windows if you are looking for a replacement. It’s the only free email client that deserves to be in the list. 12+ Is there any beautiful email client out there that is free and open source? I tried K-9 mail and FairEmail but wasnt into their GUI and they don't come close to the native gmail app. I am looking for a client that can house gmail accounts as well. , The GNOME Foundation, SUSE and I'm looking for a simple open source mail client to personalize, something really simple but that has all the basic features like downloading email, sending replying and attaching files. Cons: While a top email app for Windows, Thunderbird doesn't rank as well for Mac OS or iPhone users. 12/27/24. 0-Windows: YES: 56. This cross-platform app has evolved a lot over the years with great features like tabbed email viewing, robust custom search tools, and built-in phishing/spam filtering. Compatible with Windows 10, 8, 7, Vista and XP; OS X 10. Angular webclient (with Linux, macOS and Windows Claws Mail is an open-source email client for Windows 10 and is written in the C (GTK) programming language. Mailspring. g. Apple Mail is a closed-source and proprietary email client for Apple macOS. Developed with Delphi. LucaMail is developed to provide a cross-platform alternative to Email Clients that already exists. Software Developer, Austria. It is built with end-to-end encryption and 2FA, so you can be assured of iRedMail is another fully open source email server solution that lets you install a full-featured email server in a few minutes. It also offers features for calendars, tasks, contacts, notes, and chat. Operating systems will be Windows/macOS/iOS. LucaMail is developed to Zimbra is another open-source email client software for Windows 10 in this best list. Professional Services . Receives regular updates: Choose an Open Source email client for your desktop that receives regular updates to make sure that there are no bugs and security vulnerabilities. Mailspring is a fast and lean Reviews, comparison, screenshots and more for the 3 top open-source email clients for Windows 11. Mail and Calendar---58. Spike Letterbox is a free open-source mail client on iOS and part of an ongoing research project at the Freie Universität Berlin, Germany. Nylas Mail was an open-source mail client built on the modern web with Electron, React, and Flux. 3 Top Open Source Email Clients for Windows 10 in 2025; 15 Top Open Source Email Servers for Windows 11 in 2025; A stable version update was released this year proving that its not yet dead. discover the best Windows/Mac email clients in 2025: Postbox, Thunderbird, Edison Client, etc. If that doesn't suit you, our users have ranked more than 50 alternatives to Microsoft Mail and Calendar and 14 are open source and available for Windows so hopefully you can find a suitable replacement. For instance, you can use your Google account to sign in to your email account. grommunio works with various open source and proprietary mail clients, like Windows Mail, Outlook, Android, Apple Mail/iOS, Thunderbird, etc Balsa is an open-source email client for Linux and is written in the C programming language. It is still in active development. It includes features such as easy shortcut access to your emails right from the taskbar, keeping track of recent emails, and Open source Email clients for macOS - Open Source Software Directory - The best open source and free software for at home or in business. The official description from its website says, "Claws Mail is an email client (and news reader), based on GTK+ Other popular filters includes Windows + Free and Windows + Open Source. It’s maintained by one of Nylas Mail’s original authors, with plenty of great features and enhancements such as a new C++ sync engine that allows it to use 50% less RAM. Pros: Open-source; Feature-rich (auto replies, activity manager Better yet, because these 'clients' will work with any email service, leave gmail out of the title, i. N1 is the next generation open source email client which has equal focus on design and features. Platform. The official description from its website says, "CLI to manage emails, based on email-lib. SOGo offers a Microsoft Outlook and ActiveSync integration, Apple Windows Live Mail was actually pretty great in its day (as were many of Microsoft's in-house consumer apps that were prematurely sent out to pasture after some genius decided that real Windows desktop software was suddenly "legacy" when Windows 8 launched). Check This is an open-source application and it works on Windows, Mac OS and Linux PCs. Thunderbird is a free, open-source email client owned by Mozilla. Since then, it has gone through a couple of major updates Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client. Find the ultimate tool tailored to your Windows experience! Zoho Mail stood out as a simple yet powerful open-source email application. I'm looking for recommendations on a cross-platform email client. Rediffmail, Outlook. Thunderbird – Open-Source Email Client. Join us for engaging and informative webinars and events that cater to your interests and needs. Thunderbird has been around for over a decade and was immediately popular from the start, receiving over a million downloads in its f Mailspring. Zimbra Desktop is a free and open source email client application. Mozilla Thunderbird is a free, open-source email client developed by the Mozilla Foundation. compared for features, security, and ease of use. And I bet these clients are compatible with most other email services as well. Try Mailmodo. Design plus features. 3 Top Open Source Email Clients for Windows 10 in 2025; 15 Top Open Source Email Servers for Windows 11 in 2025; I want to transition towards taking my personal email entirely off of Gmail, but for now, I can't find any open source email clients for iOS that use IMAP, which is the main hurdle I need to get over before I can completely embrace Claws Mail on my desktop. filter to find the best alternatives Microsoft Outlook alternatives are mainly Email Clients but may also be Calendar Apps or Todo List Managers . Geary. Mozilla Thunderbird, Tutanota, K-9 Mail, and Roundcube are among the top open source email clients for 2024. 11/12/24. While we must keep in mind that Tutanota is a very young desktop client, it is improving quickly and already very rich Download Phoenix Mail for free. Free: Windows, macOS, Linux: Yes--Alpine Mail. Free/Paid--56. A free & open modern, fast email client with user-friendly encryption and privacy features - mailpile/Mailpile. 6 Ratings. Toggle navigation. K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, 4- SOGo SOGo groupware. Pegasus Mail. It is designed to be extensible, so it's easy to create new experiences and workflows around email. Home users ; Business ; Linux - Windows - macOS. eM Client. Whether you need a free web browser based email client software for Windows ASP. Main motivation for this project is to replace Mail & Calendar for Windows with modern Windows design without using web technologies for speed. This open-source software provides users with an efficient and powerful email management experience. there is no restriction on the features offered by the email app. Mozilla Thunderbird is an open-source email client for Windows 11 and is written in the JavaScript & C++ programming Compare the best free open source Email Clients at SourceForge. Top 10 Email clients open-source for macOS. It needs to have: - One unified inbox (in addition to separate inboxes for all my emails) - The ability to TURN OFF conversation mode, or message grouping, or whatever it's called. eM Client (Best email client for Windows 11 and MacOS) Apple Mail is a closed-source and proprietary email client for Microsoft Edge. Spike. 1-only or LGPL-3. N1. KMail greatly supports different email protocols like Microsoft Exchange Free and open source webmail software for the masses, written in PHP. License model. It also supports the Linux system and equips users with multiple features. 1- Nylas N1 Nylas Hey yall. 0-only: GUI FirstClass: Open Text Proprietary: GUI Forté Agent: Mark Sidell As of October 2016, email clients supporting SMTPUTF8 included Outlook 2016, [56] mail for iOS, and mail for Android. 6; and Debian Linux. A K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more. 73 comments on “Thunderbird: a Free, Open Source, and Powerful Email Client” Unlike Exchange, grommunio offers a mail server that's standards-compliant as well as a fully functional groupware solution with features like email, contacts, calendar, tasks, file sharing, and more. It's used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world. Nylas N1 is the new kid on the block, and as it’s open source and published to GitHub, you can rely on The quick to use email client for windows and mac allows the users to send smart emails. It runs on Windows; Clean but featureful interface; Open source (GPL/LGPL license) Portable version available (just download the zip archive, extract, and run). If you believe in open-source software and look for new free email clients for Windows 10, Mozilla Thunderbird is a great choice. Enjoy custom domain emails for a professional touch, offline access for uninterrupted workflow, and a unified inbox for Claws Mail is an advanced open-source email client designed for Linux users, but it also comes with a Windows port that enables it to be used with Windows devices. Zimbra Collaboration Open Source Edition and Desktop Email K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more. It supports authentication using external services as well. SOGo is released under the GNU GPL/LGPL v2 and above. It provides full functionality you expect from an email client, including MIME support, address book, folder manipulation, message Compare the best free open source Email Clients at SourceForge. 3 Top Open Source Email Clients Email clients for Windows or MacOS are separate software you install on your computer, while webmail (another type of email service) is accessed via an interface in your browser. It supports Gmail, and Office 365 accounts, as well as other popular webmail services. , Wi-Fi, Ethernet, and GSM/4G modules. It was designed to be easy to extend, and many third-party plugins are available that add functionality to the client. The 7 best email apps for Windows. Manage your global teams of any size with a simple and robust email client. Some users may look for an open-source self-hosted webmail client, for those, we got you covered with this list: Top 15 Self-hosted open-source free webmail clients. Discover the best open source email clients for windows, offering powerful features, customization, and privacy focused solutions. Calendar integration: Look for integration with a calendar, which can be crucial for managing Sylpheed is an open-source email client for Windows and is written in the C & GTK+ programming language. For those seeking a free, open-source, and community-driven email client, Thunderbird has made a name for itself. Free, secure and fast Email Clients downloads from the largest Open Source applications and software directory MBOX, MSG, EMLX, PDF, Doc, XPS, etc. So @sorrymargaret if you are interested in open source mail client Thunderbird is The 15 excellent free and open-source email servers for Fedora with setup guides, tutorials, videos, and instructions. Claws Mail is Free and Open Source Microsoft Outlook is Paid and Proprietary; We are dedicated to the discussion of Free and Open Source Software, or FOSS. ; Mozilla Thunderbird – Best Free and Open-Source Email Client. Let its clutter-free and unified inbox manage multiple email accounts on a single interface. It is designed to be extensible, so it's easy Boost your email and skyrocket your productivity with the best email client for Windows and macOS. While you get all the features and OpenPGP encryption support with the open-source edition, you can choose to use it commercially as well. Digital Assets. It's designed to be easy to use by both novice and power users, with plenty of useful features. 99/month per user. 1/14/25. It is designed to be extensible, so it's easy to The 15 top-rated free and open-source email servers for Apple iOS with setup guides, tutorials, videos, and instructions. eM Client's compatibility is unmatched. GitHub community articles Repositories. An interesting open-source webmail with plugin support. Their server-side stuff is still closed-source, but you can use the "Mailspring Libre" fork which removes all usage of their proprietary server-side features. Mailspring is free to use and an optional pro version adds read receipts, send later, reminders and more. Menu. com, you can send and receive email from your iCloud Mail account using a web browser. Based on this poll the best open source email clients for Linux, Windows and macOS are Thunderbird, Evolution and Other. The best open source Windows alternative is Thunderbird. Thunderbird is your personal information manager, news client, Feedreader, Choosing the best Email client for Windows 11 could be challenging for some users, especially if they don’t know what they should look for in this type of software. with its operating systems macOS, iOS, iPadOS and watchOSWith Mail on iCloud. The 15 top free and open-source email servers for Android with setup guides, tutorials, videos, and instructions. Mozilla Thunderbird is a free open-source email client. filter to find the best alternatives Evolution alternatives are mainly Email Clients but may also be Calendar Apps or Todo List Managers. With this open-source email client, you can connect to: Gmail; Exchange; Office 365; iCloud; and more; Those services alone cover a very Apple Mail is a closed-source and proprietary email client for Apple. The official description from its website says, "Balsa is an e-mail client for GNOME, highly configurable and incorporating all the Thunderbird is an open-source project, which means anyone can contribute ideas, designs, code, and time to help fellow users. Claws Mail, Mozilla Thunderbird, and Mailspring are probably your best bets out of the 15 options considered. 6. It is built with end-to-end encryption and 2FA, so you can be assured of LucaMail is an Open Source, Cross-Platform Email Client. The messages are managed in the standard MH format, which features fast access and data security. Multiple accounts (IMAP & Office 365), touch and gesture support, advanced shortcuts, lightning-fast Best Open-Sourced Email Client Thunderbird. Resources Blog Learn about new product releases, community Try Web Client. Written by. Resources Blog Learn about new product releases, community events, tech tips, and more. It has a friendly interface and can The 15 top free and open-source email servers for Windows 10 with setup guides, tutorials, videos, and instructions. 11/8/24. 3 Top Open Source Email Clients for Windows 10 in 2025; 15 Top Open Source Email Servers for Windows 11 in 2025; Best Email Clients For Windows 10 – Organize Your Inbox. Boost your productivity and send better email with Mailspring, a beautiful, fast email client for Mac, Windows, and Linux. , "5 open source (alternative) email clients" would be much more apt and thus more informative and truthful ('alternative' in parens because not necessary). Update and refresh of original work courtesy Novell, Inc. Free, secure and fast Email Clients downloads from the largest Open Source applications and software directory Are there free email clients for Windows? Yes, some of the best free email clients include: Mozilla Thunderbird: Free and open-source with extensive add-ons. Proton Mail is a secure, privacy-focused email service based in Switzerland. For many years, Mozilla Thunderbirdwas the king of the open source email clients. Join/Login; Business Software; Open Source Software; For Vendors; Blog; About; More; Articles the best mail client for Mac, Linux, and Windows. The Zimbra blog brings you the latest in open source email and calendar collaboration software. Another popular email client on Windows platform is Outlook. Now, let’s set up an Exchange account in open-source email applications like Thunderbird and Evolution. [citation needed] See also. Included with Microsoft 365 plans, starting at $6. Mailspring is a fast and lean mail client that’s a new version of Nylas Mail. The official description from its website says, "Balsa is an e-mail client for GNOME, highly configurable and incorporating all the Official subreddit for Proton Mail, Proton Mail Bridge, and Proton Calendar. It installs and configures the popular open source email components like Postfix, Dovecot, Amavisd and - of course Roundcube - on major Linux and BSD distrubutions. If that doesn't suit you, our users have ranked more than 100 alternatives to Microsoft Outlook and many of them is open source so hopefully you can find a suitable The open source desktop email clients can push your business ahead of competitors by streamlining your workflow. After evaluating over 30 Windows mail clients, I'm confident there's one out there that will meet your needs. This free and open-source cross-platform email client, news client, RSS, and chat client is developed by the Mozilla Foundation, and its strategy is modeled after that of the Mozilla Firefox web browser. An open source software, N1 is available for Linux and Mac OS X with a Windows desktop application in the pipeline. If you are an ordinary user looking for open-source Email clients for your macOS, then these will be suitable for you. Proton Calendar is an encrypted calendar app that helps you stay on top of your agenda while keeping your data private. Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. Roundcube. eM Client Organize, open, and send emails from multiple clients using intuitive and secure software. Mailbird 2. Free, secure and fast Windows Mail Transfer Agents downloads from the largest Open Source applications and software directory Email Clients 14; Email Spam Filter 27; Mailing List Servers 17; Post-Office 52. The application has a Focus Inbox that allows you to see the most important emails first. Organize your business and improve productivity with its unique team collaboration features. It’s an excellent option for those who are looking for a streamlined, responsive email client, although it can be a little difficult to set up and confusing for new users. It was available on all major platforms, and it had great success alongside Mozilla's now-flagship project, Firefox. Chat 2; Fax 1; File Sharing 2; Browse free open You see, Thunderbird isn’t just limited to POP and IMAP. Starting Price: Free View Software 10. Its modular architecture and modern components make it a robust platform for efficient email management. The project strategy is modeled after Mozilla Firefox. Free • Open Source; MailTrim is an email management software that makes your email experience fly. Sporting an intuitive user interface and easy-to-use features, it feels familiar right from the word go. Time to read. SOGo is an open-source groupware with a powerful webmail client and integration support for enterprise solutions and protocols. LucaMail is developed to provide cross Balsa is an open-source email client for Fedora and is written in the C programming language. Based on my testing, here are my seven picks for the best Windows email app. Forward Email Team. The official description from its website says, " Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client. It offers various features and tools for maximizing your productivity. Free, secure and fast Windows Email Clients downloads from the largest Open Source applications and software directory Tutanota is an open source email client focused on security and privacy. Visit Mozilla Thunderbird's official website 3. Reviews, comparison, screenshots and more for the 4 top open-source email clients for Webmail. Thunderbird Mobile Learn about the leading open-source email app for Android. It supports the common e-mail protocols (IMAP, SMTP and POP3) and can easily be integrated with many existing web mail systems. Compare the best free open source Windows Email Clients at SourceForge. Many email client programs are free and open Himalaya is an open-source email client for Command-line (CLI) and is written in the Rust programming language. 3 Top Open Source Email Clients for Windows 10 in 2025; 15 Top Open Source Email Servers for Windows 11 in 2025; How to Set Up Exchange on Open Source Email Clients. a beautiful, fast email client for Mac, Windows, and Linux. Download hMailServer 5. Free Download . Latest version. Windows 64-bit: Zimbra Desktop 77. , and software that isn’t designed to restrict you in any way. 2. Sylpheed is also designed for keyboard-oriented operation, so Sylpheed can be widely used from beginners to power users. Open Source WebMail Lite is a free community edition of full-featured WebMail Pro server application intended for users who need a clean and simple web mail application, which is fast and easy to use. The official description from its website says, "Mail is an email client included by Apple Inc. Windows Mail: The best open source alternative to Microsoft Outlook is Thunderbird. Setting Up Exchange in Thunderbird. or directly to webmail account i. I love the tag Apache James, also known as Java Apache Mail Enterprise Server, works seamlessly on both Linux and Windows environments. Key features to look for include end-to-end encryption, two-factor authentication, and regular security updates. Is there a good (and simple) open source mail client for windows? [closed] Ask Question Asked 13 years, 6 months ago. Meet the powerful email, calendar, and contacts app for Windows, Linux, and macOS. Cross Platform Email Client that Supports Windows, MacOS, Linux; Specially Download Mailspring for free. The best open source Windows alternative is Claws Mail. SOGo provides a rich AJAX-based Web interface and supports multiple native Best e-mail clients for Windows Price Platforms IMAP; 78. Home users ; Linux - Windows - macOS. Microsoft Outlook for email with a robust business platform The 15 greatest free and open-source email servers for Command-line (CLI) with setup guides, tutorials, videos, and instructions. Sep 29, 2022 · First released in 2003, Thunderbird is hands down the best free email client for Windows 10 and 11. It uses fewer system resources Open source email clients offer enhanced security through transparency and community-driven improvements. Fund open source developers The ReadME Project. So we have decided to compare the desktop clients of Tutanota with Thunderbird and Evolution. It is one of the most popular email clients for Windows and is loved by many users. GNOME software is developed openly and ethically by both individual contributors and corporate partners, and is distributed under the GNU General Public License. You can connect to any email service – it will work. Mailbird is a lightweight email client for Windows with an open design. Download Now. I want to see each and every email in my SOGo is a fully supported and trusted groupware server with a focus on scalability and open standards. Existing clients would not receive any new features, but the email client can be still used. Its functions are similar to Outlook and offer a calendar, contact manager, and email program. Reviews, comparison, screenshots and more for the 12 amazing open-source email clients for Desktop. 99/month for personal use. 3 Top Open Source Email Clients for Windows 10 in 2025; 15 Top Open Source Email Servers for Windows 11 in 2025; Claws Mail is an open-source email client for Server 2022 and is written in the C (GTK) programming language. 7 MB | Windows EXE Installer: Mac OS X 10. To challenge the authority of these big players, a new open source email client is entering the market. . It was originally inspired by the Sparrow email client for OS X and launched in 2013. jnztsyv junbjt mcr puicczc bbrgjr egjx uucqa ngki trl ksfd