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Rendering in Outlook 2007 Part 2: The Search for Answers

  May 21st, 2008 by Lucas Weber

In my last post, I detailed the testing I did to find out why some of our messages were consistently breaking on Outlook 2007 machines and discovered an issue with DPI settings. If the display settings were set to use a DPI other than the default of 96, the message would render improperly. At the end of that post, I said that I would continue my research….

I tested two methods to fix the rendering issues - I have not found a conclusion yet. Hopefully detailing these tests will save you some time and frustration.

Percentage based widths

I attempted to convert the Bronto News to use percentages instead of pixels to define the widths of the sections in the hope that this would provide a fluid layout rather than fixed. The layout looked just fine in Thunderbird, but Outlook 2007 failed to render it properly and showed the same results as last time.

Images using width/height CSS attributes

A comment left by Alex Foley on the previous post mentioned that it might be the images that are throwing off the layout because Outlook 2007 may be rendering pixels differently for image files than for the rest of the HTML. I thought that I would give this a try until I discovered that Outlook 2007 does not support width and height CSS attributes. Scratch that one off for now as well. This could be a working solution, but we won’t know until Outlook 2007 supports these attributes.

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