Track Email - Get Response when Email is Read

thank Tadit Dash so much! i'll try

like pheonyx said, if receiver click and read mail but don't click this picture then we still couldn't know receiver have read mail or not.....

so, do you have source about it? i need it to research. thank you so much!!!!

oh, thank Tadit Dash so much! do you have a facebook or yahoo account? i want to you help me

thank Tadit!

yes, i'm alex. i have pm but you don't reply, hihi

Tadit Dash: when receiver open mail to read then <img src = "mywebsite"> will execute together mail or when we click to showing mail then it will? i don't understand clearly! please help me!

protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
if (Request.Params["val"] != null)
{
OpenEmail(Request.Params["val"].ToString());
}
}
Response.Redirect("Default.aspx");
}

private void OpenEmail(string key)
{
using(MasterDataContext db = new MasterDataContext())
{
var obj = db.mailSendingLists.SingleOrDefault(p => p.Email == key);
if (obj != null)
{
obj.AmountRead = (obj.AmountRead ?? 0) + 1;
}
db.SubmitChanges();
}
}

But when the sender will check sent mail that time also executed your .aspx Code and will update read receipt. Which is wrong.