Email is still a highly effective marketing channel, with usage growing 28% in the past year and one of the highest ROIs. To get the best results from email marketing, marketers should utilize personalization features, automate emails using autoresponders and drip campaigns, include dynamic content tailored to recipients, and ensure emails are optimized for mobile devices. Personalization includes using first names and segmenting lists, while automation involves triggering emails based on user actions and sending scheduled content over time.