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Sending Email in Asp.Net C#


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Sending Email in Asp.Net C#

Here I have described how to send email in Asp.Net C#.

For sending email, required two namespaces “System.Net;”,” System.Net.Mail;”. These namespaces have some classes (“MailMessage”,” Attachment”,” SmtpClient”,” NetworkCredential”) that help to sending mail. Demo is given in few steps.

Step 1: create table with some values.

CREATE DATABASE Email

 

USE Email

 

 

CREATE TABLE tblEmailDetails

(

Id INT IDENTITY PRIMARY KEY,

EmailId VARCHAR(200) UNIQUE,

UserName VARCHAR(200)

)

 

INSERT INTO tblEmailDetails([EmailId],UserName)

VALUES('memtechlodhi@gmail.com','Manish'),

('praveshsinghfaq@gmail.com','Pravesh Singh')

 

Step 2: Create UI part of demo

<fieldset style="width:200px; height:100px">

    <legend>Send bulk emails</legend>

    <asp:Button ID="btnSend" Text="Send" runat="server" onclick="btnSend_Click"/>

</fieldset>

 

Step 3: coding part (.cs file)

using System;

using System.Net.Mail;

using System.Data.SqlClient;

using System.Net;

using System.Configuration;

 

public partial class index : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

 

    }

    protected void btnSend_Click(object sender, EventArgs e)

    {

        string conString = ConfigurationManager.ConnectionStrings["dbconnection"].ConnectionString;

        SqlConnection con = new SqlConnection(conString);

        try

        {

            MailMessage msg = new MailMessage();

 

            SqlCommand cmd = new SqlCommand("select EmailId from tblEmailDetails", con);

            con.Open();

            SqlDataReader dr = cmd.ExecuteReader();

            while (dr.Read())

            {

                msg.Bcc.Add(dr["EmailId"].ToString());

            }

            msg.From = new MailAddress("your email id ");

            msg.Subject = "Testing email delivery";

            msg.Body = "Hello";

            msg.IsBodyHtml = true;

            Attachment imgAtt = new Attachment(Server.MapPath("~/images/issue.png"));

            imgAtt.ContentId = "issue.png";

            msg.Attachments.Add(imgAtt);

            SmtpClient client = new SmtpClient("smtp.gmail.com", 587);

            client.EnableSsl = true;

            NetworkCredential credentials = new NetworkCredential("your email id", "your email password");

            client.Credentials = credentials;

            client.Send(msg);

            Response.Write("We Will Contact you as soon as Possible!!! ");

 

        }

        catch { Response.Write("please try again letter!!! "); }

        finally { con.Close(); }

    }

}

 

Note: For sending email, sender (From) required email id and regarding password. That checks network credential for sending emails to receiver (To).


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