Market Share of Email Programs Published: 20th January 2014 Category: Email Articles, Infographics Source: Litmus — Email Client Market Share: Where People Opened in 2013 Related posts:Rude emails have a wide impactFive ways to deal with email overloadCan you really achieve inbox zero? Written by Graham Jones This article has been contributed by another writer, blogger or website. The content is their copyright and represents their views.