I have also had an issue with Outlook email rendering on a Windows 10 computer. The email will open properly formatted, but if the user has to "download the images", it will break the formatting of the whole email. Images that should only be left column go full width and break the template. Just for testing, I even changed the template from responsive to actually set the exact height and width of the image with in-line css and still get the full-size images. Any idea if this is just a "download the images" issue or a Marketo template issue? I would prefer not to have to upload exact image sizing, because then those image size renderings would be off in tablet and mobile views. The issue doesn't happen on outlook for Mac, the Outlook web app on PC or Mac on any browser (even IE), nor outlook for IOS, gmail, etc. It seems very specific to the Outlook on Windows 10 (at least).
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