There is a misconception that image maps are poorly supported among email clients.
This article goes over which clients support image maps as well as some of the advantages and disadvantageous of using them in your campaigns.
Although the Android and iOS versions of the Yahoo! Mail app look similar, there is a key difference between them and that is the iOS version supports <style> in both the head as well as the body of the email whereas the
One of the exciting possibilities of interactive email is games. Kristian Robinson of Two built two really cool versions of Sonic the Hedgehog games that you can play within an email. I was blown away with the slick execution of both
Although VML is widely used in Microsoft Outlook 2007-2016, background image support has been elusive in the new Windows 10 Mail.
Marshall Gerz found a method of implementing VML that allowed for background images to work in both Outlook and Windows 10 Mail.