1. Boomerang for Outlook offers email productivity tools to track, schedule and send mails at the right time.

  2. ContactMonkey tracks email opens and link clicks.

  3. Terminus is a feature-rich URL builder that helps you build and manage your UTM tracking URLs.

  4. ifRead is a free email tracking service that tracks email you sent.

  5. EmailTrackerPro is an email tracking and spam filter solution.

  6. Turing Cloud is an integrated suite of productivity tools with email, chat, tasks, calendar, contacts, and notes.

  7. Groupmail is an email marketing platform enabling marketers to create newsletters, track email marketing campaigns and gain insights.

  8. Outposts is a Construction and Management Simulation by Sierra On-line.

  9. WhoReadMe is an email tracking solution that provides details on read duration, recipient location, organization name, operating system etc.

  10. Collect email sending data across your email services

  11. DidTheyReadIt e-mails that are sent will be invisibly tracked and the instant the recipient opens the message DidTheyReadIt automatically notifies the user.

  12. Zendio is an email tracking and email delivery confirmation solution.