When it comes to engaging consumers through holiday emails, research shows that they respond to subject lines, CTAs, content and discounts differently during the busiest season of the year. But there is in fact some common ground between those that are successful. Marketers can focus on a variety of factors, including writing catchy, brief subject lines, mentioning the actual holiday, creating a sense of urgency, emphasizing savings, and more. Check out these tips for writing engaging holiday emails, according to a piece in Multichannel Merchant.