Postbox is an Email Client for OS X and Windows PC. It offers an array of productivity features that helps you to find messages and contacts faster, manage your email messages, add notes to your messages, archive your emails and more. You also can create email related reminders or to-do lists and organize email rules.

Postbox is based on Mozilla Thunderbird code and it supports some of Thunderbird’s plug-ins.
Key Features of Postbox:
- Keyboard shortcut for paste function: cmd-shift-v (Mac) and ctrl-shift-v (Windows)
- You can search contacts by first name, last name, or domain
- Quick Look for attachments in the compose window on Mac OS X. Select the attachments and use the space bar to quick look them
- Fixed issue with Spotlight not showing the correct subjects
- Easy to search for almost anything across all of your email accounts
- Improved performance and stability with large sets of mail
- find messages and contacts faster, manage your email messages, add notes to your messages, archive your emails and more
- switch between Reply and Reply All from the compose window
- Support for mail as PDF on Mac OS X
- Integrated Mozilla Firefox security updates through version 3.6.11
- Fixed issue opening iWork (Pages, Keynote, and Numbers) attachments on Mac OS X
- Fixed issue for tooltips not always disappearing correctly on Mac OS X when using Spaces
Postbox now supports ‘Unified Inboxes’, which lets you combine messages from multiple accounts into one Inbox and introduces the Focus Pane, a new feature that lets you break your Inbox into smaller, more manageable chunks. Further more, Quick Reply lets you reply to a message without opening a separate compose window, which is perfect for short, snappy responses.

Moreover, Postbox offers integration with several online services like Facebook, Twitter etc., which enables you to post directly to your online accounts and match contacts with online profile information.
Click here to download!