sending email to users contact list?
<p>i have an application to retrieve an users contact list in a gridview...how do i send email to all the users from the users contact list??</p>

<p>Steps:-</p>

<p>1.User enters hi/her email id and password.
2.Clicks on send invites.
3.The button click event should send invitation email to all the contacts in users contact list.[ how to do the 3rd step??] </p>
