Thunderbird是一个支持IMAP、POP3的邮件客户端工具，它提供了一个向导程序，能让你导入 来自Outlook和Outlook Express的邮件和邮箱地址。在Thunderbird中，所有重要的功能都可以通过工具条上的按钮进行快速操作。这款邮件客户端相当易用，而且允许你轻松地更换界面主题。快速搜索功能则允许你使用发件人或邮件主题为关键字进行搜索，并且可以按多个关键字进行分组排序显示。
Thunderbird 24.0 发布，改进记录包括：
Message threads can now be ignored or watched.
Email can now be sent to IDN-based email addresses.
Zoom functionality is available in the compose window.
In the Compose window, ctrl/cmd + and ctrl/cmd - now change the zoom setting rather than the font size.
In Twitter, replying to a tweet now replies to all users, just like on the Twitter website.
Interactions in the filter list dialogs have been improved.
In Chat, user nicknames are now highlighted when mentioned.
In IRC, long messages will now be sent in multiple parts instead of being cut off.
Various security fixes
官方首页：https://www.mozilla.org/zh-CN/thunderbird/
免费下载：http://www.mozilla.org/en-US/thunderbird/all.html
来自:开源中国社区
