Thunderbird is a free, open-source, cross-platform application for managing email and news feeds. It is a local (rather than a web-based) email application that is powerful yet easy-to-use. Thunderbird is developed, tested, translated and supported by the folks at Mozilla Corporation and by a group of dedicated volunteers. Thunderbird gives you control and ownership over your email. There are lots of add-ons available for Thunderbird that enable you to extend and customize your email experience.
Thunderbird gives you IMAP/POP support, a built-in RSS reader, support for HTML mail, powerful quick search, saved search folders, advanced message filtering, message grouping, labels, return receipts, smart address book LDAP address completion, import tools, and the ability to manage multiple e-mail and newsgroup accounts.
Bug fixes in Thunderbird 45.7.0:
- Message preview pane non-functional after IMAP folder was renamed or moved
- "Move To" button on "Search Messages" panel not working
- Message sent to "undisclosed recipients" shows no recipient (non-functional since Thunderbird version 38)
- Calendar: No way to accept/decline email invitations when sent and received messages are stored in the same folder
- Various security fixes
Download: Thunderbird 45.7.0 for Windows (EN/US) | 33.4 MB (Freeware)
Download: Thunderbird 45.7.0 for Linux (EN/US) | 42.2 MB
Download: Thunderbird 45.7.0 for Mac OS (EN/US) | 74.0 MB
Download: Thunderbird 45.7.0 in other languages
View: Thunderbird Website