Thunderbird is a desktop email and productivity application which brings email, calendars, contacts and tasks together in a single interface.
It supports multiple email accounts using IMAP and POP, with flexible folder views, powerful search, message filters and a unified inbox. Native Microsoft Exchange email support is available alongside the conventional mail protocols.
Thunderbird also includes RSS and Atom feed reading, Usenet newsgroups, integrated calendars and address books, and extensive support for extensions and themes.
This is free and open source software.
Key Features
- Manage multiple IMAP, POP and SMTP accounts, either separately or through unified folder views.
- Native Microsoft Exchange email support through Exchange Web Services, with Microsoft Graph support available in the monthly Release channel.
- Integrated calendar, task and address book functionality, including remote calendars and address books.
- Built-in RSS and Atom feed reader and a fully integrated Usenet newsgroup client.
- Powerful message search, Quick Filter, tags, saved searches and configurable message filters.
- Account Hub simplifies account creation with autodiscovery, automatic protocol detection and setup of associated calendars and address books.
- Integrated OpenPGP and S/MIME support for message signing and encryption.
- Spam filtering, phishing protection and remote-content controls help protect privacy and security.
- Tabbed interface and Spaces Toolbar provide quick access to mail, contacts, calendar, tasks, chat and add-ons.
- Import and export tools assist with moving accounts, messages, address books and other profile data.
- Native desktop notifications provide actions such as marking messages read, deleting, archiving and flagging mail as spam.
- Built-in PDF viewer supports reorganising pages and adding visual signatures to PDF attachments.
- Extensible through a large ecosystem of add-ons and themes.
Website: www.thunderbird.net
Support:
Developer: MZLA Technologies Corporation
License: Mozilla Public License v2.0

Thunderbird is written in C and C++. Learn C with our recommended free books and free tutorials. Learn C++ with our recommended free books and free tutorials.
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