I know your post is from a while ago, but we are dealing with the exact same issue right now. That template came from Marketo, and I believe it's from a template site they used to have because we have the same one:
I've been researching this more and had found several posts in the community about how poor the code was on those templates, so I think that is the root of the problem.
I'm wondering if you resolved this somehow or if you scrapped your templates and started fresh?
I definitely recommend using our Starter Templates in the product rather than anything you've found at http://templates.marketo.com. It's not that they're bad templates, but the world evolves and so do email clients. The templates at http://templates.marketo.com are outdated. The starter templates are a much better place to get started.