These are often used for affiliate programs and web site statistics services. There are two easy ways to implement a similar feature for Gmail or Yahoo! Mail, both with their pros and cons.Ī tracking image is a special externally hosted image file that is monitored by an analytics software. Web-based email services like Gmail and Yahoo! Mail do not have this feature, however. That way, you can make sure that they actually 'got the memo,' without nagging them about it later. That is, when the recipient opens the email, the server will notify that the email has been read. For those of you who are familiar with Microsoft Exchange servers and other enterprise email solutions, you've probably gotten used to the convenience of the email read receipt feature.
