Best Email Clients for Windows of 2025

Thunderbird is a no-cost email client that is simple to install and personalize, packed with an array of impressive features! It enhances your email experience by combining efficiency, security, and the most recent technologies. You can concentrate on the essential tasks without getting bogged down by unnecessary complexities. Various features, including integrated Do Not Track capabilities and blocking of remote content, collaborate to protect your privacy and security, allowing you to relax knowing your information is safe. With the help of Add-ons (Extensions & Themes), you can quickly transform Thunderbird's appearance and functionality to suit your preferences. Additionally, you can keep track of your schedule and significant events with a calendar that seamlessly integrates with your Thunderbird email, enabling you to manage multiple calendars, create daily to-do lists, invite friends to gatherings, and subscribe to public calendars. As an open-source initiative, Thunderbird invites anyone to participate by sharing ideas, designs, code, and volunteering time to assist other users in the community. This collaborative approach not only enhances the software but also fosters a sense of belonging among its users.

Claws Mail serves as an email client and news reader built on the GTK+ framework, offering a responsive, elegant, and advanced interface alongside simple configuration, user-friendly operation, a wealth of features, and strong extensibility coupled with reliability and stability. Its design is intentionally crafted to be approachable for newcomers transitioning from other well-known email clients while still catering to the needs of seasoned users. Nearly all functions can be executed using keyboard shortcuts, significantly enhancing usability. The software handles messages using the conventional MH format, which ensures quick access and safeguards user data. You can easily import emails from virtually any email client, and the export process is equally straightforward. Additionally, various plugins enhance functionality with features like an RSS aggregator, calendar, and management of laptop LED indicators. Claws Mail is made available under the GPL license, encouraging community contribution and improvement. With its combination of powerful features and user-centric design, Claws Mail stands out as a versatile choice for email management.