Not so long ago you could be confident that your marketing emails were landing on the desk of someone sitting in front of a computer, with time and an environment conducive to actually reading it. Now your emails are arriving in the hands of people in a multitude of different locations, and who are usually engaged in other activities at the same time. Email on the move has become so commonplace that we take it for granted, but the fact is that mobile email has become a whole new discipline. Marketers need to understand what this means for them and their content, and adapt their strategies accordingly. With mobile, the biggest single factor that determines how people respond to an…