Step 1: I have a requirement like On clicking a button in my Application, Mail should be triggered to respective person in To list.
Outlook.Application app = new Outlook.Application ();
Outlook._MailItem mailItm = ( Outlook._MailItem)app.CreateItem ( Outlook.OlItemType.olMailItem );
mailItm.To = "xxx@xxx.com";
mailItm.Cc = "yyy@yyy.com";
mailItm.Subject = "Some Subject";
// body, bcc etc...
mailItm.Display ( true );
If you are clicking on a link to send email with filling (To, Subject, Cc, etc.,) without using asp.net, you can do something like following using mailto:
<a href="mailto:xxx@xxx.com?Subject=Some%20Subject&Cc=yyy@yyy.com>
Click here to send mail
</a>