The email can be amongst the most effective tools to deliver on digital marketing. In order to be most effective at it, it is important to include social share icons within the body of the mail. Feature posts must be shared with the public. Critically, the mail must include a CTA (call-to-action). Content that will be included in the mail must be shareable so that eventually it can get viral. Through this, exclusive offers must be advertised to consumers including discounts and giveaways to lure the customer. Periodic contests must be held to engage with the crowd and eventually crown the winners. A feedback mechanism must be incorporated along with the mail so that customers can directly engage with the firm.

Source: http://smallbiztrends.com/2016/06/social-media-email.html