This tutorial will show you how to send a simple email message with authentication using ASP.NET 2.0 and VB.NET
Sending a email with Priorities using ASP.NET 2.0 and VB.NET is actually very simple.
First, you will need to import the System.Net.Mail namespace.
The System.Net.Mail namespace contains the SmtpClient and MailMessage Classes that we need in order to send the email and specify the user credentials necessary to send authenticated email.
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We use the btnSubmit_Click event to do the work.
We then call the emailClient.Send to send the message using the variables from our ASP.NET coded page. We also instantiate a System.Net.NetworkCredential object with the necessary authentication info and then assign that object to the Credentials property of our SmtpClient object.
Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
Try
Dim message As New MailMessage(txtFrom.Text, txtTo.Text, txtSubject.Text, txtBody.Text)
Dim emailClient As New SmtpClient(txtSMTPServer.Text)
Dim SMTPUserInfo As New System.Net.NetworkCredential(txtSMTPUser.Text, txtSMTPPass.Text)
emailClient.UseDefaultCredentials = False
emailClient.Credentials = SMTPUserInfo
emailClient.Send(message)
litStatus.Text = "Message Sent"
Catch ex As Exception
litStatus.Text = ex.ToString()
End Try |
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The front end .aspx page looks something like this:
<table width="600" border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#5482fc">
<tr>
<td height="50" align="center" class="lgHeader1">How to Send Email with Authentication using ASP.NET 2.0 and C#</td>
</tr>
</table>
<br />
<table width="600" border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#cccccc">
<tr>
<td width="100" align="right" bgcolor="#eeeeee" class="header1"> To</td>
<td bgcolor="#FFFFFF"><asp:TextBox ID="txtTo" runat="server" Columns="50"></asp:TextBox></td>
</tr>
<tr>
<td width="100" align="right" bgcolor="#eeeeee" class="header1"> From</td>
<td bgcolor="#FFFFFF"><asp:TextBox ID="txtFrom" runat="server" Columns="50"></asp:TextBox></td>
</tr>
<tr>
<td align="right" bgcolor="#eeeeee" class="header1"> SMTP Server</td>
<td bgcolor="#FFFFFF"><asp:TextBox ID="txtSMTPServer" runat="server" Columns="50"></asp:TextBox></td>
</tr>
<tr>
<td align="right" bgcolor="#eeeeee" class="header1">SMTP User</td>
<td bgcolor="#FFFFFF"><asp:TextBox ID="txtSMTPUser" runat="server" Columns="50"></asp:TextBox></td>
</tr>
<tr>
<td align="right" bgcolor="#eeeeee" class="header1">SMTP Pass</td>
<td bgcolor="#FFFFFF"><asp:TextBox ID="txtSMTPPass" runat="server" Columns="50"></asp:TextBox></td>
</tr>
<tr>
<td width="100" align="right" bgcolor="#eeeeee" class="header1"> Subject</td>
<td bgcolor="#FFFFFF"><asp:TextBox ID="txtSubject" runat="server" Columns="50"></asp:TextBox></td>
</tr>
<tr>
<td width="100" align="right" bgcolor="#eeeeee" class="header1"> Body</td>
<td bgcolor="#FFFFFF"><asp:TextBox ID="txtBody" runat="server" Columns="40" TextMode="MultiLine"></asp:TextBox></td>
</tr>
<tr>
<td align="right" bgcolor="#eeeeee" class="header1">Action</td>
<td bgcolor="#FFFFFF"><asp:Button ID="btnSubmit" runat="server" Text="Send Email" OnClick="btnSubmit_Click" /></td>
</tr>
<tr>
<td width="100" align="right" bgcolor="#eeeeee" class="header1">Status</td>
<td bgcolor="#FFFFFF" class="basix"><asp:Literal ID="litStatus" runat="server"></asp:Literal></td>
</tr>
</table>
|
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The flow for the code behind page is as follows.
Imports System.Net.Mail
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
Try
Dim message As New MailMessage(txtFrom.Text, txtTo.Text, txtSubject.Text, txtBody.Text)
Dim emailClient As New SmtpClient(txtSMTPServer.Text)
Dim SMTPUserInfo As New System.Net.NetworkCredential(txtSMTPUser.Text, txtSMTPPass.Text)
emailClient.UseDefaultCredentials = False
emailClient.Credentials = SMTPUserInfo
emailClient.Send(message)
litStatus.Text = "Message Sent"
Catch ex As Exception
litStatus.Text = ex.ToString()
End Try
End Sub |
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