While email is the most mature (that sounds better than “old,” right?) form of digital marketing, there’s no shortage of marketing technology innovation in this area. Both startups and established vendors continue to develop new capabilities for formatting, targeting, sending, and monitoring the impact of email messages, as well as functions like list building, inbox management, video email, deliverability, branding, custom email signatures and more.
The primary cost of poorly crafted or mis-targeted emails is lost business opportunities, though in extreme cases it can damage a firm’s reputation as well. But the potential payoff for effective email marketing is substantial; email messages are more likely to be seen and acted upon by decision makers than online content, social media, or advertising.

Marketing emails need to be personalized to the reader and filled with interesting graphics. Few people want to read emails that are addressed "Dear Sir/Madam" -- as opposed to their first or last name -- and even fewer people want to read an email that simply gives them a wall of text. Visuals help your recipients quickly understand what the point of the email is.
From a business perspective, emails are widely used as a cost-effective as well as efficient way of acquiring new customers, boosting sales, building up your brand awareness and fostering a sense of trust among your customers. Email marketing has also shown a better ROI compared to other marketing channels. According to a survey conducted by Direct Marketing Association and Demand Metric, email had an ROI of nearly 122%, whereas other channels such as social media had just 28%.

Pricing: SendinBlue comes up with a unique pricing model where you are free to send about 300 emails daily and 9000 monthly. If you choose the 19 Euros/ Month plan option, you are allowed to post about 40,000 emails per month. For the 29 Euro/Month package, you are allowed to send 60,000 emails per month. Moreover, if you opt for 49 Euros/Month option, you will be free to send 1,20,000 emails per month.
Customer.io is an email marketing tool that can be used by various different roles within your business including marketers, product managers and of course, growth hackers. Users can send targeted emails to your visitors on your website or to mobile app users depending on their activity. You are notified when they have read your email and/or if they click on one of the links. It also includes A/B Testing capabilities.
Keep the subject line and pre-header short: The subject line is crucial. Keep it short so the reader knows exactly what the email topic is about. And the pre-header text (also known as snippet text), don’t let it go to waste by using “To view this email in your browser…”. Instead, summarize the email or include a call to action (i.e., Use “FREESHIP” to get free shipping).
×