We are having exactly the same issue running DNN 5.4.4 and Smith Cart 2.95. As you can see from the email receipt below, the html table is being converted into text and butchered even though my email client is MS Outlook (I placed this test order myself and this is the receipt I got from Smith Cart). I receive dozens of html emails through this same client just fine everyday. Something is broken here and we are trying to fix it for our client (for whom we just launched their sites live yesterday and we are trying to meet their requests to clean up the email receipts as orders are already coming in and this is a mess).
Thanks a bunch, John
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Order ID: 2
Order Date: 7/6/2010 3:09:52 PM
Shipping Information: Billing Information: User Name
145 White Bluff Dr
Whitney , Texas
76692
United States
User Name
145 White Bluff Dr
Whitney , Texas
76692
United States
Product Name Quantity Price --> The Fuel And The Flame 2.00 $9.99 --> SubTotal: $19.98 Discount: -0.00 Shipping: 1.00 Handling: 0.00 Tax: 0.00 Order Total: $20.98