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How to send emails in asp.net | How to set Smtp setting in web.config file to send email in asp.net

Introduction: Sometimes it is required to send email from our website to other person. It’s very easy.In previous article i explained How to send emails in asp.net using Gmailin asp.net and Send emails in asp.net using Gmail | Howto set Smtp settingin web.config file to send emails in asp.net using Gmail inasp.net Now in this article i will explain how you can send mail by setting the SMTP settting in web.config file.

Benefit: If you want to change the credentials then the real benefit of setting it in web.config file is that you need to change the credentials from one place even if you have used the email code in multiple pages.

ImplementationLet's create an asp.net demo web page to test this.

  • In the design page (.aspx) create structure as:

<table style="width:100%;">
    <tr>
        <td>
            Send To(Email Address)</td>
        <td>
            <asp:TextBox ID="txtEmailId" runat="server" Columns="60"></asp:TextBox>
            </td>
    </tr>
    <tr>
        <td>
            Subject</td>
        <td>
            <asp:TextBox ID="txtSubject" runat="server" Columns="60"></asp:TextBox>
            </td>
    </tr>
    <tr>
        <td>
            Body</td>
        <td>
            <asp:TextBox ID="txtBody" runat="server" Columns="60" Rows="5"
                TextMode="MultiLine"></asp:TextBox>
            </td>
    </tr>
    <tr>
        <td>
             </td>
        <td>
            <asp:Button ID="btnSendEmail" runat="server" onclick="btnSendEmail_Click"
                Text="Send Email" />
            </td>
    </tr>  
</table>

  • In the web.config file write as:
<system.net>
    <mailSettings>
      <smtp>
        <network host="smtp.yourdomain.com"
                 port="25"
                 userName="you@yourdomain.com"
                 password="YourPassword"/>           
      </smtp>
    </mailSettings>      
  </system.net>

  <appSettings>
    <add key="EmailID" value=" you@yourdomain.com"/>
  </appSettings>


C#.NET Code  to send emails in asp.net
  • Include following namespaces:
using System.Configuration;
using System.Net.Mail;
  • Now in the code behind file(.aspx.cs) write the code to send Email on send mail button as:
  protected void btnSendEmail_Click(object sender, EventArgs e)
    {
        string fromEmail = ConfigurationManager.AppSettings["EmailID"].ToString();
        string toEmail = txtEmailId.Text.Trim();
        MailMessage message = new MailMessage(fromEmail, toEmail);
        message.Subject = txtSubject.Text.Trim();
        message.Body = txtBody.Text.Trim();
        SmtpClient smtp = new SmtpClient();       
        smtp.Send(message);
    }

VB.NET Code  to send emails in asp.net

  • Include following namespaces:

imports System.Configuration
imports System.Net.Mail
  •  Now in the code behind file(.aspx.vb) write the code to send Email on send mail button as:
Protected Sub btnSendEmail_Click(sender As Object, e As EventArgs)
       Dim fromEmail As String = ConfigurationManager.AppSettings("EmailID").ToString()
       Dim toEmail As String = txtEmailId.Text.Trim()
       Dim message As New MailMessage(fromEmail, toEmail)
       message.Subject = txtSubject.Text.Trim()
       message.Body = txtBody.Text.Trim()
       Dim smtp As New SmtpClient()
       smtp.Send(message)
End Sub

Now over to you:

" I hope you have got the real benefit of setting the smtp settings to send mail in web.config file and If you like my work; you can appreciate by leaving your comments, hitting Facebook like button, following on Google+, Twitter, Linked in and Pinterest, stumbling my posts on stumble upon and subscribing for receiving free updates directly to your inbox . Stay tuned and stay connected for more technical updates."
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4 comments

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Anonymous
admin
October 23, 2013 ×

this works just great!

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October 24, 2013 ×

Thanks..i am glad my article helped you..stay tuned and keep reading..:)

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Anonymous
admin
February 16, 2014 ×

Thanks for this, is there any other way to automatically send the email everyday at specific time and how to add attachment to the email.

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February 17, 2014 ×

Hi, to send attachment with email read the following article..
http://www.webcodeexpert.com/2013/06/how-to-send-mail-with-multiple.html

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