In this post, I will explain How to send email in ASP.Net C#?.
I am going to explain this with below example. In an example, we have one Asp.Net form with few controls as Name, Email, Phone No & Message and Submit Button. On Submit button click application will send one mail to the recipient email. In an example, I am using Gmail SMTP Server and Gmail email address with credentials to send an email.
Required additional Namespaces -
using System.Net;
using System.Net.Mail;
Required changes in Gmail account settings to allow sending an email using Asp.Net C# application.
1. Login Gmail account
2. Go to My Account
3. Go to Sign In & Security
4. Go to Connected apps & sites
5. Change "Allow less secure apps:" settings to "ON"
Below is detailed HTML & C# code to send email using Asp.net C#.
HTML Code:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="SendMail.aspx.cs" Inherits="TestApplication.SendMail" %>
<!DOCTYPE html>
<html lang="">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table cellspacing="0">
<tr>
<td style="text-align: left; height: 25px;">
<asp:Label ID="lblMessage" runat="server" ForeColor="Red" Text=""></asp:Label>
</td>
</tr>
<tr>
<td style="text-align: left">
<asp:Label ID="label10" runat="server" Text="Name :"></asp:Label>
</td>
</tr>
<tr>
<td style="text-align: left;">
<asp:TextBox ID="txtName" runat="server" ></asp:TextBox>
</td>
</tr>
<tr>
<td style="text-align: left">
<asp:Label ID="label12" runat="server" Text="Email :"></asp:Label>
</td>
</tr>
<tr>
<td style="text-align: left;">
<asp:TextBox ID="txtEmail" runat="server" ></asp:TextBox>
</td>
</tr>
<tr>
<td style="text-align: left">
<asp:Label ID="label1" runat="server" Text="Phone No :"></asp:Label>
</td>
</tr>
<tr>
<td style="text-align: left;">
<asp:TextBox ID="txtPhoneNo" runat="server" MaxLength="14"></asp:TextBox>
</td>
</tr>
<tr>
<td style="text-align: left">
<asp:Label ID="label18" runat="server" Text="Message :"></asp:Label>
</td>
</tr>
<tr>
<td style="text-align: left;">
<asp:TextBox ID="txtMessage" runat="server" Height="80px" TextMode="multiline"></asp:TextBox>
</td>
</tr>
<tr>
<td style="text-align: center; padding-top: 10px;">
<asp:Button ID="btnSubmit" runat="server" OnClick="btnSubmit_Click" Text="SUBMIT" ValidationGroup="Submit" />
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
C# Code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.Net.Mail;
namespace TestApplication
{
public partial class SendMail : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
// settings to do with Gmail account
protected void btnSubmit_Click(object sender, EventArgs e)
{
try
{
string Name, Email, PhoneNo, Message, Body, Subject;
Name = txtName.Text;
Email = txtEmail.Text;
PhoneNo = txtPhoneNo.Text;
Message = txtMessage.Text;
Subject = "Message "+ " From " + Name;
Body = "Name :" + Name + "<br/>" + "<br/>"
+ "Email :" + Email + "<br/>" + "<br/>"
+ "PhoneNo :" + PhoneNo + "<br/>" + "<br/>"
+ "Message :" + Message + "<br/>" + "<br/>"
+ "Date :" + DateTime.Now.ToString();
MailMessage Msg = new MailMessage();
Msg.From = new MailAddress(Email);
//Recipient e-mail address. You can add multiple email address to a recipient list
Msg.To.Add("abc@gmail.com,info@abc.co.in");
Msg.Subject = Subject;
Msg.Body = Body;
Msg.IsBodyHtml = true;
// SMTP server name or IP and port details.
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
//smtp.Host = ""127.0.0.1"";
smtp.Port = 587;
smtp.Credentials = new System.Net.NetworkCredential("abc@gmail.com", "abc@abc");
smtp.EnableSsl = true;
smtp.Send(Msg);
// Clearvaluess
txtName.Text = "";
txtEmail.Text = "";
txtPhoneNo.Text = "";
txtMessage.Text = "";
lblMessage.Text = "Thanks for Contacting us !!!";
}
catch (Exception ex)
{
lblMessage.Text = ex.Message.ToString();
}
}
}
}
