The ability to determine if an electronic message has been accessed by its intended recipient is a functionality desired by many senders. This inquiry, stemming from the need for confirmation and improved communication, often revolves around understanding whether an email has been viewed. For instance, a sales professional sending a proposal seeks to know if the client has opened and reviewed the document.
Knowing whether a recipient has opened an email offers significant advantages. It allows senders to gauge the effectiveness of their communication, tailor follow-up strategies, and assess the level of engagement. Historically, this capability was limited and relied on basic read receipts or server-side tracking. The pursuit of more reliable and detailed email tracking has driven the development of various technologies and techniques.