Sending E-mail from IIS SMTP

Download sending e-mail from IIS SMTP code

To send e-mail from an Asp.Net application using the System.Net.Mail, you must configure Simple Mail Transfer Protocol (SMTP) e-mail. Mail can be delivered immediately, or it can be delivered to a file location on disk where it is configured.

The procedures for configuring SMTP e-mail can be performed at the following levels in Internet Information Services (IIS):

• IIS Server
• Asp.Net Application
• Physical and virtual directories

Install SMTP

Click on the below link to understand how to Configure or Install IIS Server

dotnet-revanth.blogspot.com/2016/01/iis-internet-information-services.html

Following Steps to Configure SMTP E-Mail for a Web Application

Step-1

Create Asp.Net application for sending E-mail

       1.       Run Visual Studio as Administrator

       2.       Click on FILE -> NEW -> Web site.

       3.       Click Templates as Visual C#, .Net framework, web location as HTTP

       4.       Type project name as http://localhost/SendingEmailByIIS

       5.       Click OK

Step-2

Right click on the project-> Add -> Add New Item -> Select Web form ->Click Add button

Step-3

In Default.aspx file copy and paste below code

<table style="font-family: Arial,'Segoe UI';">

                <tr>

                    <td colspan="3">

                        <span align="left">

                            <asp:Image ID="imgMail" runat="server" ImageUrl="~/Image/mail.png" Width="50px" Height="30px" />

                        </span>

                        <span style="font-size: 20px; margin-top: -5px">Sending Email through SMTP IIS

                        </span>

                    </td>

                </tr>

                <tr>

                    <td>From</td>

                    <td>:</td>

                    <td>

                        <asp:TextBox ID="txtFrom" runat="server" Width="300"></asp:TextBox>

                    </td>

                </tr>

                <tr>

                    <td>To</td>

                    <td>:</td>

                    <td>

                        <asp:TextBox ID="txtTo" runat="server" Width="300"></asp:TextBox>

                    </td>

                </tr>

                <tr>

                    <td>Subject</td>

                    <td>:</td>

                    <td>

                        <asp:TextBox ID="txtSubject" runat="server" Width="300"></asp:TextBox>

                    </td>

                </tr>

                <tr>

                    <td>Message</td>

                    <td>:</td>

                    <td>

                        <asp:TextBox ID="txtMessage" runat="server" TextMode="MultiLine" Rows="5" Columns="40"></asp:TextBox>

                    </td>

                </tr>

                <tr>

                    <td colspan="3" align="Right">

                        <asp:Button ID="btnSend" runat="server" Text="Send mail" OnClick="btnSend_Click" BackColor="#009999" ForeColor="White" Font-Bold="true" BorderColor="#009999" />

                    </td>

                </tr>

                <tr>

                    <td colspan="3">

                        <asp:Label ID="lblStatus" runat="server" />

                    </td>

                </tr>

            </table>

Step-4

In Default.aspx.cs file copy and paste below code

using System.Net.Mail;

protected void btnSend_Click(object sender, EventArgs e)

    {

        try

        {

            string from = txtFrom.Text.Trim();

            string to = txtTo.Text.Trim();

            string subject = txtSubject.Text.Trim();

            string message = txtMessage.Text.Trim();

            SmtpClient objSmtpClient = new SmtpClient();

            objSmtpClient.Host = "localhost";

            objSmtpClient.Port = 25;

            objSmtpClient.Send(from, to, subject, message);

            lblStatus.Text = "<b style='color:green'>Email has been sent successfully!!!</b>";

        }

        catch (SmtpException ex) { lblStatus.Text = "<b style='color:red'>" + ex.Message + "</b>"; }

    }

Step-5

Open Web.Config and notice the code

Step-6

·         Click on the Windows Logo + R.

·         Type INETMGR in the Run window.

·          Click ok.

Step-7

Now Select the Project that you have created.

Step-8

After select your project, Double click on the SMTP E-mail and type as follows

• Click on the Deliver e-mail to SMTP server
• Enter in below SMTP Server textbox as “localhost”
• Click on the Use localhost checkbox
• Port: 25
• Authentication Settings- Not required
• Click on the browse button to select the pickup directory where you want to receive the E-mail
• Now click on Apply from the right side of Action section

Step-9

Click on Yes to All button and look at the changes in the Web.Config file

Step-10

Now run the project and enter all the fields and hit on send mail button.

Open the configured directory and check the mail.

Note: Setup the outlook or windows mail to open the received mail.

Watch this video for better understanding: