SMTP email using ASP.net problem

<div class="gmail_default">Hi</div> <div class="gmail_default"></div> <div class="gmail_default">I have a domain hosted at godaddy</div> <div class="gmail_default">I am using a code in asp.net to send email. The code is working without any error. But the mail is not getting delivered to the recipient. When i check the send items of sender email , there it is showing an email already sent to the recipient. But in the recipient inbox no such mail recieved.</div> <div class="gmail_default">Can you help me.</div> <div class="gmail_default">I am using google mail</div> <div class="gmail_default"></div> <div class="gmail_default">sample code snipet</div> <div class="gmail_default"></div> <div class="gmail_default"> ...