Email as a marketing tool can increase traffic and conversions. Needless to say, content is always the king. Build trust with the quality of your campaigns and you can expect customers/client to come looking for you for subscriptions. This happens when you offer some value through your emails.
This infographic, created by Vebology, revolves around the practices that will certainly help you achieve much higher open rates including better ROI metrics.
Must Read: How to do Content Marketing in 2015?