Yesware - Sell smarter with email tracking and more
ReadNotify - ReadNotify enables the user to know when email is sent and the reciever reads the email.
Mixmax - At Mixmax, our mission is to change how the world communicates. We’re an email productivity platform that helps sales, customer success, and recruiting teams do their jobs better.
ContactMonkey - ContactMonkey tracks email opens and link clicks.
Intelliverse Email Tracker - Intelliverse Email Tracker provides insights to increase the productivity of your emails.
Zendio - Zendio is an email tracking and email delivery confirmation solution.