HubSpot Marketing Hub

HubSpot's Marketing Hub is the email and automation component within its full-fledged CRM platform. It's designed for businesses that want marketing, sales, and service tools tightly woven together. Emails can be personalized with rich contact property data from the CRM, and automation workflows can span across marketing actions and sales tasks. It shines for lead nurturing and moving contacts through a funnel.

The free tools are remarkably generous, making it a compelling starting point for inbound marketers.