"Your Order from [company name] Has Shipped!" Scams
You might have received a message that asks you to click a link to verify or check your order. Common scams use Buy.com, Amazon.com, eBay.com, or similar online marketplaces to make their messages look legitimate. APPROACH WITH CAUTION. Even if you made a recent purchase from one of these marketplaces, do not open any attachments, and do not click any links in the message.
If you need to check your account, type the marketplace's URL directly into your browser and log in via their secure page. Most legitimate marketplaces will only send you a receipt immediately after a purchase--they will NOT ask you to click any links to verify an order.
NOTE: These scams can look very legitimate, but they are not. The scammer is attempting to panic recipients into clicking links that do NOT go to the stated Web site. A good hint that this is a scam is the outrageous shipping and handling charges, as noted in the image below.
Here's an example of the "order confirmation" scam (click to enlarge):