Dear All, Great... I would like to thank each and every one for their wonderful solution(s) regarding my analysis. I guess I can go for image concept. Anyway i am going to use the offer image so that the customer(s) would be curios to see the offer.. :) Code Added : '<img src="http://911inks.com/email_opened.php?sent_date='.date("d/m/Y").'&cust_id='.$s_customers_id.'">' --- In php-objects@xxxxxxxxxxxxxxx, "Malcolm Spann" <mspann@...> wrote: > > > > I am doing a analysis of Email read receipt concept.. I need your help > > regarding that. > > > > For an instance, If i am sending 1000 emails from my php file to my > > clients, I would like to know how many of them opened their email? > > > > I guess in the Javascript we can do this, Is this the right way or any > > other short cut method. > > As others have already said, the two ways are: > > 1) Return receipt, and > > 2) An image request in the email message. > > Neither are going to be 100% accurate. In fact, I doubt that either will be > better than 50% (making up a number here) accurate. > > 1) Many people turn OFF the return receipt. I turn mine off. Many > businesses turn them off, either at the workstation, or at their firewall. > > 2) Using external images is sometimes called Lazy HTML. Some email > clients (Outlook, etc) USED to turn this on by default. Now, they turn it OFF > by default, and require the user to specifically ask to see the image. My > email client, Pegasus, won't request or display external images at all. I have > to open the message in a browser if I want to see the images. Many > businesses also turn these off, as it is viewed as a security issue (viruses, > trojens, etc.) > > So, you can ask for a return receipt, or use an image request, but the data > you collect WILL be inaccurate. > > Malcolm > www.artcoinc.com >