This week I tested Postbox 1.0, a program designed to handle your email in a smart, helpful manner. Starting Wednesday, this program is available at www.Postbox-Inc.com. Postbox sorts through your email and detects its contents so you can see Web links, photos, contacts and other items themselves with one button click—whether Microsoft Word (MSFT) documents, PDFs or spreadsheets—without digging through messages. Since its inbox is constantly being indexed, all search queries return near-instant results.

Postbox uses an Inspector Pane on the right side of each email to extract and display elements like images, attachments and contact information.

Postbox’s founders come from Mozilla Corp., maker of the popular Firefox browser, so Postbox is based on Mozilla technology and its security standards. Email is indexed locally on your computer, so none of it is sent back across the Web to Postbox. It uses Content Tabs (tabs are another feature borrowed from Firefox) to help visually organize folders, messages and content extracted from those messages. It displays the most important elements of each message in a right-side panel. Received emails can even be edited so they aren’t sitting in your inbox with subject lines like, “Fw: Re: Re: Sept.” Instead, you can rewrite the subject to something like “Flight times.”

But this program isn’t free like Gmail, Hotmail or other Web-based email programs, nor does it come preloaded on a computer the way Apple Mail (AAPL) is on every Mac. Users can try Postbox for a free 30-day trial period after which each license costs $40, allowing one person to use their license on multiple computers (i.e. at work, at home, on a laptop). For another $20, a Family Pack option will give up to five family members use of Postbox. An additional $25 buys a Lifetime Upgrades plan that entitles you to receive free of charge any major version of Postbox that’s released; other nonmajor releases are free upgrades.

I used Postbox on a Mac and a Windows Vista computer, filling it up with thousands of emails from Gmail, Hotmail and .Mac accounts. It didn’t run properly on my company-issued computer, which is plugged into a network firewall. Postbox says it supports open protocols like IMPAP, POP and SMTP, and that it would work with Microsoft Exchange if Exchange were set to use those open protocols.

For all of Postbox’s terrific features, it can be hard to suddenly see your email in a different way since most of our email programs haven’t changed much in years. Outlook, for example, has plenty of hidden features that many people never learn how to use. Postbox seems to know how slow users are to adapt to change and so it reveals many of its features whenever it gets the chance.

For example, Postbox pops up an alert that shows you how to connect this email program to Facebook and Twitter so that you can post status updates or tweets without leaving your email. These connections also let Postbox try to pull one representative photo for each of your email contacts by matching a name in an email with someone’s Facebook or Twitter name—if you follow the person. It also uses photos assigned to contacts in the Mac OS X address book, which is used by Apple Mail.

Or take a feature in Postbox called Topics. This is a way of auto-organizing messages into different groups after you label them as being part of a certain topic, say “Mom’s Birthday.” All messages in an email conversation are grouped into “Mom’s Birthday,” as are any future responses to the same conversation. Postbox gives you three ways to label an email conversation as being part of a certain topic: from the toolbar, using a Topics button in the message header or by pressing “T” from within a message. You can also select a topic as you’re composing an email, pre-sorting that conversation into a designated topic.

Not everyone will like Topics because, however helpful the feature is, it makes the user do more work when he or she just want to get through a huge pile of unread emails. Labeling each email with a certain topic doesn’t take long, but it’s still an extra step. I would like Postbox to create automatic topics for sorting emails. For example, I recently sent and received at least 50 emails related to rescheduling tennis matches. Even though all the messages had the word “tennis” in them, not all of them were related to the same email, so they wouldn’t sort into the topic I created, “Tennis Make-Up.” Postbox says it has considered automatic options like these and may try to incorporate something similar in future versions of the product.

If my 30-day trial ran out tomorrow, I’d miss Postbox’s Inspector Bar the most. This feature works like a filter, instantly sucking out the most important parts in each email—including messages, attachments, images or links—and displaying them in a blue, right-side panel.

Another useful tool in Postbox is the Compose Sidebar. This also appears as a right-side panel but it shows up when someone is writing an email. This panel can display attachments, images, links or contacts found in all emails so you can simply drag and drop that item into your email as you’re composing it. This took me a while to get comfortable using because I’m so used to hunting through emails for things that I need to find. But once it became a habit, I found myself using the Compose Sidebar often.

If you have Postbox running in the background and you get an email, small notifications appear in the bottom left of your screen telling you which email account received the message and who sent it.

In the Content Tabs, which fill up with all attachments, images, links or contacts found in your indexed email, a feature called the Action Bar lets you save, send, or instantly glance at a document. This saves you from opening each email and its attachment, a process that sometimes requires opening a slow-to-open program to see the document. A slider in this Action Bar lets you adjust the size of images from small to large.

Postbox shines a unique light on email and the way we work with it every day. Not all of its features will come naturally for long-time users of the same email program. But for someone who wants a fast search option built into email, Postbox is a winner.

Edited by Walter S. Mossberg.

Email mossbergsolution@wsj.com

Polaroid’s $150 PoGo is an inkless printer that churns out 2×3-inch photos sent to it via Bluetooth-enabled devices or from plugged-in digital cameras.

Just this year, Polaroid Corp. said it would cease production of its “magical” cameras. But this week, I had the chance to test the company’s latest attempt at relevance in our digital world: the $150 Polaroid PoGo (thenewinstant.com). The PoGo, which stands for Polaroid-on-the-Go, is an inkless printer that churns out 2×3-inch photos sent to it via Bluetooth devices like cellphones or from plugged-in digital cameras. It uses technology created by ZINK (Zero Ink) Imaging Inc. to activate paper-embedded dye crystals, creating a new kind of photo magic. The PoGo will be in stores on July 6.

Cool Factor

This device’s ZINK Technology gives it a cool factor that will leave friends scratching their heads over how such a small device can print without ink (technical details about the 100 billion heat-activated dye crystals on each sheet of paper can be found at zink.com/technology). Photos that I printed from a 10-megapixel digital camera looked sharp and colorful. And some people may use this Polaroid gadget as a solution for freeing images that would otherwise likely remain stuck in a mobile device’s memory.

But four major problems with the PoGo make it a no-go: It isn’t quite small and light enough to be truly portable; its battery life is poor; its prints are half the size of normal photos; and image quality when printing from mobile devices is unimpressive — though this can be attributed to the low-resolution images taken with and stored on these devices rather than the printer itself. For roughly the same price, you could buy a photo printer that produces better quality 4×6-inch or larger prints.

The PoGo works only with ZINK Photo Paper, which costs between 30 cents and 40 cents a page, depending on whether you buy a 10-sheet pack for $3.99 or a 30-sheet pack for $9.99. (Later this year, a 100-sheet pack of ZINK photo paper will be available for $29.99.) The PoGo comes with 10 pieces of this paper, which is coated with a waterproof, tear-proof, smudge-proof, semi-gloss finish. You can peel the backs of these 2×3 prints to stick them to things, though not in the same way Post-its can be stuck and removed (they leave a gooey film — I learned the hard way).

A Device With Weight

Surprisingly, Polaroid is touting the PoGo’s portability; it arrived in a custom-made jeans pocket to demonstrate the device’s pocket-sized shape. But at over 8 ounces, this thing was heavier and measured larger than Apple’s (AAPL) biggest 160-gigabyte iPod Classic. It even weighed more than a bulky point-and-shoot Kodak (EK) camera I recently tested, discouraging me from bringing it along when I went out.

A chart on polaroid.com/pogo/us/comp.html tells whether or not your mobile device is Bluetooth-compatible with the PoGo. Two out of the three devices that I tried worked: A new Motorola (MOT) Z6C and Research in Motion’s (RIMM) BlackBerry Curve were compatible, though an almost-two-year-old Motorola Razr V3 wasn’t.

Each mobile device needed only one initial “pairing,” or setup, with the PoGo before it sent photos. The device used a simple method of sending photos via Bluetooth that generally involved selecting a photo and telling the mobile device to send it to the PoGo. It usually took a few seconds for the send to go through.

The PoGo doesn’t have a display to tell users when images are received, when to load more paper or if the battery is running low. Instead, it uses two indicator lights that glow or pulse in green, orange or red colors. Each light means something different, such as whether or not the PoGo is ready to print or if it has a paper jam, but I usually had to refer to the user’s manual to figure out what each light meant.

Quiet Printer

The PoGo is rather quiet while printing, making a soft whirring sound as its thermal print head turns on and zaps dye crystals, which are embedded in the ZINK photo paper. These small pieces of paper are stored in and printed from a holding space inside the device, which saves users from opening a tray and loading paper before each print-out. However, the PoGo can hold a maximum of only 10 sheets at once. Some images printed in 45 seconds and a few took about twice that long, but most were done in about one minute — counting from when I pressed Send on a mobile device to when the print finished.

I hooked a Sony (SNE) Cyber-shot DSC-W170 to the PoGo via a USB cord and used the camera’s built-in PictBridge technology to print from the camera, following directions on the camera’s display screen. I even printed four of the same photo at once after adjusting the quantity category in a menu, though this seemed to slow the printing process a bit.

While prints from my grandmother’s Polaroid camera couldn’t be touched until about a minute after printing, the small PoGo prints come out dry to the touch. I held one under the kitchen faucet to test its waterproof claim, and the colors held up without running. These prints are borderless, which looks good but seems like the only sensible option with such small paper. Images from the digital camera looked dramatically better than those taken by mobile devices’ 1.3-megapixel or two-megapixel cameras.

Short Battery Life

The PoGo’s battery life wore out quickly, especially for a device that is advertised as portable. In one test, after I unplugged my fully charged PoGo and used it for about 40 minutes to print 16 photos — half from a Bluetooth-connected cellphone and the other half from a USB-connected digital camera — its battery indicator glowed a steady orange, meaning the PoGo was running low on power. This is about right, considering Polaroid claims that a fully charged battery will last for 15 prints. (It takes about 2.5 hours to fully charge the PoGo.)

I really liked the quality of the photos that PoGo printed from my digital camera — in fact, I’m planning to enclose a few small PoGo photos in cards that I send to friends and family members. But the PoGo’s awkward size, bad battery life and small prints make it a tough sell. I’m afraid the PoGo falls short in too many categories to be a practical gadget. Teens might like this device for printing photos from their cellphones that they can stick on lockers or books. And who knows — maybe a grandmother somewhere will buy one of these gadgets to create a little Polaroid magic for her grandchild.

Edited By Walter S. Mossberg

• Email: mossbergsolution@wsj.com