I have a web site that I run for my boating club which has a feature that allows us to send broadcast emails to the club members (there are about 50 club members). We would like to have the ability to track that club members have actually received / read the club email that is sent out. I am aware of the read-receipt function in Outlook, however this doesn't work if the mail recipient uses hotmail, yahoo mail, gmail, etc. Is there any scripts or mechanisms that anyone knows of or uses that allows this to happen? Optimally I would like to find a solution that is cheap (free) and non-intrusive to the mail recipient.
Thanks in advance for any thoughts or ideas,
Jeff