How to Send Email in ASP.Net VB

The following example will demonstrate to you how to send email in ASP.Net VB using the SMTP class. VB.Net allows sending e-mails from your web application. The System.Net.Mail namespace contains classes used for sending e-mails to a Simple Mail Transfer Protocol (SMTP) server for delivery.

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How to send email in ASP.Net VB Code

Find the below points which are required to send an email:-

You must specify the SMTP host server that you use to send an e-mail. The Host and Port properties will be different for the different host servers. We will be using the Gmail server.

You need to give the credentials for authentication if required by the SMTP server.

You should also provide the email address of the sender and the e-mail address or addresses of the recipients using the MailMessage.From and MailMessage.To properties, respectively.

You should also specify the message content using the MailMessage.Body property.

Now let’s create an asp.net web application and add a VB.aspx web form, find the source code below:-

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="VB.aspx.vb" Inherits="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to Send Email in ASP.Net VB</title>
    <style type="text/css">
        body
        {
            font-family: Arial;
            font-size: 10pt;
        }
        table
        {
            border: 1px solid #ccc;
            border-collapse: collapse;
        }
        table th, table td
        {
            padding: 5px;
        }
        table, table table td
        {
            border: 0px solid #ccc;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
        <h2>How to Send Email in ASP.Net VB - Demo</h2>
    <table border="0" cellpadding="0" cellspacing="0">
        <tr>
            <td>To:</td>
            <td><asp:TextBox ID="txtTo" runat="server" /></td>
        </tr>
        <tr>
            <td>Subject:</td>
            <td><asp:TextBox ID="txtSubject" runat="server" /></td>
        </tr>
        <tr>
            <td valign = "top">Body:</td>
            <td><asp:TextBox ID="txtBody" runat="server" TextMode="MultiLine" Height="150" Width="200" /></td>
        </tr>
        <tr>
            <td></td>
            <td><asp:Button ID="btnSend" Text="Send" runat="server" OnClick = "SendEmail" /></td>
        </tr>
    </table>
    </form>
</body>
</html>

VB.aspx.vb

Imports System.Net
Imports System.Net.Mail
Imports System.Net.Configuration
Partial Class VB
    Inherits System.Web.UI.Page

    Protected Sub SendEmail(sender As Object, e As System.EventArgs)
        Dim smtpSection As SmtpSection = CType(ConfigurationManager.GetSection("system.net/mailSettings/smtp"), SmtpSection)
        Using mm As MailMessage = New MailMessage(smtpSection.From, txtTo.Text.Trim())
            mm.Subject = txtSubject.Text.Trim()
            mm.Body = txtBody.Text.Trim()
            mm.IsBodyHtml = False
            Dim smtp As SmtpClient = New SmtpClient
            smtp.Host = smtpSection.Network.Host
            smtp.EnableSsl = smtpSection.Network.EnableSsl
            Dim networkCred As NetworkCredential = New NetworkCredential(smtpSection.Network.UserName, smtpSection.Network.Password)
            smtp.UseDefaultCredentials = smtpSection.Network.DefaultCredentials
            smtp.Credentials = networkCred
            smtp.Port = smtpSection.Network.Port
            smtp.Send(mm)
            Response.Write("Your email has been sent sucessfully.")
        End Using
    End Sub
End Class

Web.config

<?xml version="1.0"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <system.net>
    <mailSettings>
        <smtp deliveryMethod="Network" from="sender@gmail.com">
            <network
                host="smtp.gmail.com"
                port="587"
                enableSsl="true"
                userName="sender@gmail.com"
                password="sender@gmail.com password"
                defaultCredentials="true"/>
        </smtp>
    </mailSettings>
  </system.net>
  <system.web>
    <compilation targetFramework="4.0" debug="true"/>
    <pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/>
  </system.web>
</configuration>

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How to send email in ASP.Net VB Code

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