error in SmtpMail.Send(msg);

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Why the error is giving System.Runtime.InteropServices.COMException: The "SendUsing" configuration value is invalid.

SmtpMail.Send(msg);

Posted 30-Oct-11 23:21pm

Janardan Pandey

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jim lahey 31-Oct-11 5:26am

post your code please

Janardan Pandey 31-Oct-11 5:30am

Email From ASP.NET

<form id="MailForm" method="post" runat="server">

<asp:Label ID="Label1" Style="left: 100px; position: absolute; top: 100px" runat="server">From:

<asp:TextBox ID="txtFrom" Style="left: 200px; position: absolute; top: 100px"

runat="server">

<asp:RequiredFieldValidator ID="FromValidator1" Style="left: 100px; position: absolute;

top: 375px" runat="server" ErrorMessage="Please Enter the Email From." Width="200px"

Height="23px" ControlToValidate="txtFrom">

<asp:RegularExpressionValidator ID="FromValidator2" Style="left: 100px; position: absolute;

top: 400px" runat="server" ErrorMessage="Please Enter a Valid From Email address"

ControlToValidate="txtFrom" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*">

<asp:Label ID="Label2" Style="left: 100px; position: absolute; top: 125px" runat="server">To:

<asp:TextBox ID="txtTo" Style="left: 200px; position: absolute; top: 125px"

runat="server">

<asp:RequiredFieldValidator ID="ToValidator1" Style="left: 100px; position: absolute;

top: 425px" runat="server" ErrorMessage="Please Enter the Email To." Width="200px"

Height="23px" ControlToValidate="txtTo">

<asp:RegularExpressionValidator ID="ToValidator2" Style="left: 100px; position: absolute;

top: 450px" runat="server" ErrorMessage="Please Enter a Valid To Email address"

ControlToValidate="txtTo" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*">

<asp:Label ID="Label3" Style="left: 100px; position: absolute; top: 150px"

runat="server">Subject

<asp:TextBox ID="txtSubject" Style="left: 200px; position: absolute; top: 150px"

runat="server">

<asp:Label ID="Label4" Style="left: 100px; position: absolute; top: 175px" runat="server">Mail:

<textarea runat="server" id="txtContent" style="left: 200px; width: 400px; position: absolute;

top: 175px; height: 125px" rows="7" cols="24">

</textarea>

<asp:Button ID="btnSend" Style="left: 200px; position: absolute; top: 350px" runat="server"

Text="Send" OnClick="btnSend_Click">

<asp:Label ID="lblStatus" Style="left: 250px; position: absolute; top: 350px" runat="server">

</form>

</body>

</html>
</pre>
<pre lang="c#">

<%@ Import Namespace="System.Web.Mail" %>
<%@ Page Language="C#" Debug="true" %>
<script runat="server">

private void btnSend_Click(object sender, System.EventArgs e)

{

MailMessage msg = new MailMessage();

msg.To = txtTo.Text;

msg.From = txtFrom.Text;

msg.Subject = txtSubject.Text;

msg.Body = txtContent.Value;
lblStatus.Text = "Sending...";

SmtpMail.Send(msg);

lblStatus.Text = "Sent email (" + txtSubject.Text + ") to " +txtTo.Text;

}

</script>
</pre>

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rajendra pratap singh · Answer 1 · 2011-10-30T23:28:00

Solution 1

conifgure your smtp server setting on your machine.

Posted 30-Oct-11 23:28pm

rajendra pratap singh

Comments

Janardan Pandey 31-Oct-11 5:33am

send mail through web mail server instead of smtp server