With the advent of virtual reality, artificial intelligence, and chatbots in recent years, email might seem like an outdated medium for marketing. However, nearly three-quarters of businesses everywhere continue to invest email marketing to increase engagement (22%) and retain their existing customers (29%). Out of the several email marketing services available in the marketing, Mailchimp, and Sendgrid stand out as the most popular choices for managing contacts and segmenting users to creating highly engaging emails and tracking campaign performance....