i tried everything, not much tutorial available
i want to provide unsubscibe option in email header
just like this https://wordtothewise.com/2009/07/gmail-offering-unsubscribe-option/
but its not working
only refernce i found is here
http://stackoverflow.com/questions/4365850/list-unsubscribe-in-e-mail-header-how-to
and it is not very useful
i am posting the code
not event the email option working
private void button1_Click(object sender, EventArgs e)
{
send25("Sd", "hi there", "aminnagpure@gmail.com", "hello chutiya", "23");
}
public string send25(string fromemail, string subject, string toas, string tmsg, string iid)
{
System.Thr ...
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