Is there a way in Marketo to see the types of email service providers our customers are using to open our emails? I've noticed significant layout changes in our HTML emails when I open an email in Outlook 2013 vs Outlook 2010 vs Gmail vs AOL vs Yahoo..... I want to focus on creating an email layout that will work best on the service platforms used by the majority of our customers. I know I can find broswer information when I look at web acitivity in Google Analytics and know that a third of our customers use Internet Explorer. But, what I can't find in Marketo email reports is the service provider of our customers... Is this possible to obtain? Thanks!