Since Postbox is all about helping you work efficiently, we've added the Quick Bar to help you do a few cool things without ever taking your hands off the keyboard. It's a great way to insert a signature or a canned response, tag the current message with a topic, or enter a URL right from the Compose window.
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One of the coolest, and perhaps nerdiest, features in Postbox 4 is Code View.
Code View is a full HTML editor built right into Postbox, powered by CodeMirror. Direct access to HTML gives you precise control over your email content, which is particularly important when using Signatures or Responses to insert pre-formatted resumes, product info, image portfolios, etc.
Postbox 4's new Composition Goals feature will keep you on track and saving time.
It's all too easy to send a message to a different email address than the one you really want, or to send a message from an account you didn't intend to use. Postbox 4 has a brilliant new feature called "Domain Fencing" that keeps you from making these kind of mistakes.
No one likes to wait for large email attachments to download. A better solution is to send links to the files—shared from a cloud file service such as Dropbox, OneDrive, or Box—instead of the attachments themselves.