Various systems and methods are provided for using a response tracking plugin to detect and inform users in real time when one or more recipients of an email are actively responding to that email. In one embodiment, the functionality disclosed herein can be applied to an email that was sent to a plurality of recipients, including at least a first and second recipient, and where the email comprises a plugin that is configured to enable response tracking. One such embodiment comprises receiving the email; monitoring for a first pulse from the second recipient of the email, where the pulse is configured to indicate that the second recipient of the email has begun a reply to the email; and in response to receiving the first pulse, displaying an indication that comprises information about the second recipient of the email.