Email marketing with Drupal

Email is one of the best ways to communicate with your customers, and audience in general. That's why it's usually the go-to channel for customer communications. This preference isn't only applied to businesses; many customers also prefer to interact with their suppliers this way. Email is low-cost, fast, trackable, segmented, and can even be proactive. The level of engagement of your recipients will vary immensely depending on the type of relationship they have with you, whether they are already customers or just subscribers, on what stage of the customer journey they are, and, of course, on what type of email is being sent. Transactional emails, from your customers' point of view, are much more important than "just" another marketing email from you.

To better clarify the above statement, let's first differentiate between the different types of emails that can be sent: transactional emails and marketing emails. Both...