The Best Claws Mail Alternatives for Every User

Claws Mail has long been a popular choice for users seeking a quick-response, graceful, and sophisticated email client with intuitive operation. Based on GTK+, it offers a solid email and news reading experience. However, individual needs evolve, and users may be looking for different features, broader platform support, or a more modern interface. Whether you're on Windows, Linux, Mac, Android, or looking for web-based solutions, exploring a Claws Mail alternative can open up new possibilities.

Top Claws Mail Alternatives

To help you find the perfect fit, we've compiled a comprehensive list of the best alternatives to Claws Mail, covering various platforms and feature sets. Dive in to discover your next favorite email client!

eM Client

eM Client is a full-featured email client available for Freemium users on Mac and Windows. It's a fantastic Claws Mail alternative offering a modern and easy-to-use interface, encompassing calendar, tasks, contacts, and chat functionalities. It supports all major services like Gmail, Exchange, iCloud, and Outlook.com, and boasts impressive data import capabilities from other clients like Thunderbird. Features include Calendar integration, Automatic Backup, Built-in themes, Built-in translation, CalDAV, CardDAV, Chat, Cloud sync, Combined Inbox, and Encrypted Email.

Thunderbird

Thunderbird stands out as a free, open-source, and cross-platform Claws Mail alternative, supporting Windows, Mac, Linux, BSD, and PortableApps.com. It's a robust e-mail, news, and instant messaging client with excellent mail filtering and management. Thunderbird supports both POP and IMAP, and offers strong support for multiple accounts and identities. Key features include Extensibility by Plugins/Extensions, Built-in RSS reader, Encryption, SMTP integration, Add-ons, Calendar integration, and a Built-in Calendar.

K-9 Mail

For Android users seeking a Claws Mail alternative, K-9 Mail is an excellent free and open-source email client. It offers multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, and Exchange Support. It's available on Android, Android Tablet, and F-Droid, focusing on privacy with features like Ad-free experience, Encryption, and PGP Encryption.

Microsoft Office Outlook

Microsoft Office Outlook is a widely-used personal information manager that serves as a powerful Claws Mail alternative, managing email, calendar, contacts, and tasks. Available across multiple platforms including Mac, Windows, Web, Android, iPhone, and more, it offers Freemium pricing and robust integration with other Microsoft services. Notable features include Address book integration, Built-in Calendar, Exchange integration, Dropbox integration, Email scheduling, and a Unified inbox.

eM Client

eM Client is highlighted again as a strong Claws Mail alternative due to its comprehensive feature set for Freemium users on Mac and Windows. Its modern interface integrates calendar, tasks, contacts, and chat, supporting major services like Gmail, Exchange, and iCloud. Its ability to import data from various email clients, combined with full touch device support, makes it a versatile choice. Features include Calendar integration, Automatic Backup, Built-in themes, Cloud sync, Combined Inbox, Encrypted Email, and Night mode/Dark Theme.

Evolution

Evolution is a free and open-source personal information management application, ideal for Linux and BSD users seeking a comprehensive Claws Mail alternative. It provides integrated mail, calendaring, address book, and task list functionality with an emphasis on standards compliance and security. It integrates smoothly with Microsoft Exchange via the “Exchange Web Services” (EWS) extension. Features include Calendar integration, CalDAV, Exchange, Built-in RSS reader, CardDAV, Encrypted Email, and Integrated Spam Protection.

Spark

Spark is a Freemium Claws Mail alternative available on Mac, Android, and iPhone, known for its Smart Inbox that automatically categorizes emails. It helps users quickly process emails with easy archiving and deletion. Features like Clean design, Multiple Account support, Sync across Devices, Calendar integration, Email scheduling, Exchange, Postpone email reception, and Snooze mail make it a highly efficient choice for managing your inbox.

Reeder

Reeder is a commercial news reader for Mac, iPhone, and iPad, offering support for various sync services. While primarily a news reader, its focus on organizing information could appeal to users looking for a different approach to their digital content consumption, making it a niche Claws Mail alternative. It includes features like Offline Reading, Feedly client, Multiple Account support, and RSS.

Mailbird

Mailbird is a commercial Windows-based email client that provides a clean, simple, and fast email experience, serving as a compelling Claws Mail alternative for Windows users. It offers Multi Account support for various providers like Gmail, Yahoo, and Outlook.com. Features include Undo send, Asana integration, Clean design, Sync Contacts, Dropbox integration, Facebook integration, and a Unified inbox, enhancing productivity and connectivity.

Apple Mail

Apple Mail, bundled with macOS, iPhone, and iPad, is a free and integrated Claws Mail alternative for Apple ecosystem users. It reimagines email interaction with a widescreen, two-column view and a favorites bar for quick access. Features like Bundled with macOS, CalDAV, CardDAV, Encrypted Email, Exchange, Rich text editing, and UI customization offer a seamless and native email experience within Apple devices.

OpenProject

While OpenProject is primarily an open-source software for project management, its robust features like Email tracking, Gantt-charts, Kanban boards, and Task Management can offer a collaborative and organizational alternative to managing certain email-related workflows, especially in a team setting. Available as Freemium on Web, Self-Hosted, and Cloudron, it could be a tangential Claws Mail alternative for users looking to integrate project communication more deeply.

Finding the right email client is a personal journey. We encourage you to explore these Claws Mail alternatives, considering their features, platform compatibility, and pricing models to determine the best fit for your specific needs and workflow.