Thunderbird is a free, open-source e-mail client available on multiple platforms, mirroring the design philosophy of Mozilla Firefox. It offers both POP and IMAP support for accessing mail locally or remotely, along with robust email filtering and management features. Thunderbird also includes built-in chat functionality alongside seamless integration for managing multiple accounts, automated signatures, and efficient search capabilities across past conversations and received emails. Additionally, it functions as an RSS/Atom feed reader, supports calendar integration, PGP encryption, and offers extensive add-ons to enhance its functionalities. Its Android version is known as K-9 Mail.
About Thunderbird
- Link: https://www.thunderbird.net
- Features: Customizable, Intuitive Interface, Privacy focused, Support for Themes, Extensible by Plugins/Extensions, Multiple Account support, IMAP Support, Calendar Integration, Email Organizer, SMTP Support, Add-ons, Built-in RSS reader, POP3 Support, Graphical User Interface, Dark Mode, Google Calendar integration, Works Offline, OpenPGP, Ad-free, Gmail integration, No Tracking, Unified inbox, Mail Filtering, Tabbed interface, Integrated Web Browser, Portable, Built-in Calendar, Calendar Sync, Integrated Chat, Protected by Password, Full-Text Search, PGP Encryption, Calendar View, GPG Encryption, Import/Export OPML Feeds, Spam Filter, Integrated Password Manager, Sync with Google Calendar, Spell Checking, No registration required, Categories, Personal Information Manager (PIM), HTML Compose, S/MIME Support, Import from Google Reader, Free API, Legacy addons support, Secure File Sharing, Delivery reports, Matrix Protocol
- Supported Platforms: Mac, Windows, Linux, Android, BSD, AppImageHub, Snapcraft, Flathub, PortableApps.com, F-Droid, Haiku, Homebrew, Chocolatey
- Pricing: Free, Open Source (MPL-2.0)