Error Send Email Failed.Failure sending mail.

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Why these error is giving Send Email Failed.Failure sending mail. in the below code?

HTML

<html>
<body>
<form  runat="server">
<table>
<tr><td>
 Enter Email<asp:TextBox ID="t1" runat="server"/><br>
 Name <asp:TextBox ID="t2" runat="server"/>
  <br>
  Subject<asp:TextBox ID="t3" runat="server"/>
  <br>
 Click to send <asp:Button ID="b1" Text="send" OnClick="send" runat="server"/>
 <br>
 <asp:Label ID="l1" runat="server"/>
</br></br></br></br></td></tr>
</table>
</form>
</body>
</html>

C#

<%@ Page Language="C#" EnableSessionState="False" EnableViewState="False" Trace="False" Debug="True"%>

<%@ Import Namespace="System.Configuration" %>
<%@ Import Namespace="System.Web" %>
<%@ Import Namespace="System.Web.Security" %>
<%@ Import Namespace="System.Web.UI" %>
<%@ Import Namespace="System.Web.UI.WebControls" %>
<%@ Import Namespace="System.Web.UI.HtmlControls" %>
<%@ Import Namespace="System.Net.Mail" %>

<script  runat="server">
 void send(Object sender, EventArgs e)
    {
// System.Web.Mail.SmtpMail.SmtpServer is obsolete in 2.0
 // System.Net.Mail.SmtpClient is the alternate class for this in 2.0 
  SmtpClient smtpClient = new SmtpClient();
   MailMessage message = new MailMessage(); 
   try       
{        
    MailAddress fromAddress = new MailAddress(t1.Text, t2.Text);
     
    smtpClient.Host = "localhost";     
   
    smtpClient.Port = 25; 
 
    message.From = fromAddress;

    message.To.Add("john_begginer@yahoo.co.in");
    message.Subject = "Feedback";
  
    message.IsBodyHtml = false;

    message.Body = t3.Text;
    // Send SMTP mail
    smtpClient.Send(message);
    l1.Text = "Email successfully sent.";
    }
    catch (Exception ex)
    {
    l1.Text = "Send Email Failed.<br>" + ex.Message;
    }
    }
</script>
</br>

Errors are giving - Error Send Email Failed.Failure sending mail.

Posted 4-Nov-11 0:23am

Janardan Pandey

Updated 4-Nov-11 0:24am

uspatel

v2

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Comments

Richard MacCutchan 4-Nov-11 6:27am

Why are you sending to "localhost" rather than to the destination SMTP server?

4 solutions

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P.Salini · Answer 1 · 2011-11-04T00:26:00

Solution 1

Once check your server details correct or not
if correct then

Check This link

How to send email through asp.net[^]

Posted 4-Nov-11 0:26am

P.Salini

Updated 4-Nov-11 0:27am

v2

uspatel · Answer 2 · 2011-11-04T00:27:00

Solution 2

see my answers

Posted 4-Nov-11 0:27am

uspatel

sravani.v · Answer 3 · 2011-11-04T00:28:00

Solution 3

Refer this link:

Problem in Mail Sending[^]

Posted 4-Nov-11 0:28am

sravani.v

Mehdi Gholam · Answer 4 · 2011-11-04T00:29:00

Solution 4

You must send your email via a valid mail server address (you are using localhost).

You must also be authenticated on the email server to send otherwise you will be classified as spam and your IP address black listed.

Posted 4-Nov-11 0:29am

Mehdi Gholam