Postbox is an email client for OS X and Windows built on Mozilla Thunderbird code. But Postbox is much richer in features compared to Thunderbird, including a number of social features and connections to web services like Twitter, FriendFeed, and Facebook. Postbox indexes your messages, contacts, images, links, and attachments, making it simple to search for items stored in your emails.
Po mom mišljenju je mnogo bolji od Thunderbird-a.
Our duty is to be useful, not according to our desires but according to our powers.