My friend: Did u opened my email? - i'm waiting... (Mar/11/2009 )

strawberry, it might be because the person's email address has some problem or s/he's made it so that all emails to the first address is forwarded to the second address and second address failed or something like that. U can jst give a call and confirm. If U really doubt something is fishy, there are some few (but unreliable and not recommendable) ways to trace the emails which will just put ur relation into more strain because it may false report.

Take care. Just give a call or something.

i think this is the best solution
thnx guys

We can send emails with ColdFusion using cfmail tag, but we do not have a direct way to track whether an email has been read/opened by the recipient or not. We can do this using some indirect way mentioned below.

While developing an email functionality with cfmail, we can include one 1X1 px image in the mail body using <img src="". Instead of providing the path of the image for src directly, we can provide the path of one CFM template present on the server. The URL should contain one random number as URL parameter created using CreateUUID() function to uniquely identify each server request when the email is opened. In the CFM template we can render the 1X1 px image using cfcontent and also we can run an update query to set the email status flag to "Read".

Sample Code:

<cfmail from="from@mindfiresolutions.com" to="to@mindfiresolutions.com" subject="test subject" server="mailServerIP" type="text/html">
<img src="http://www.testsite.com/1x1.cfm?id=recipientID&randID=#CreateUUID()#">
Email Text
</cfmail>

Hope this would add some value.