Q. How to make Email sending from asp.net using c#?

·  Step1:

Open Visual Studio, Create new Asp.net web Application, and name “Email Application”:

Now your application is created. In solution Explorer, Right click on project and add new item, Web Form.

Step2:

Now create GUI of web form, as I created like this:

Drag and drop labels, textboxes, buttons and validation controls from toolbox.

Then rename them for ease of use in coding!

And create a label for checking, either email is sending or not.

Step3:

Now open .cs file of web form,

Add these namespaces:

    using System;

    using System.Configuration;

    using System.Net;

    using System.Net.Configuration;

    using System.Net.Mail;

    using System.Web.Configuration;

    using System.Collections.Generic;

    using System.ComponentModel;

    using System.Data;

    using System.Drawing;

    using System.Linq;

    using System.Text

Step4:

In .cs file add new method name sendEmail(), put all logic in it and just call it on send button, click event.

protected void sendEmail()

{

///creating new email message instance

///and getting SMTP settings from web.config

MailMessage MyMailMessage = new MailMessage();

Configuration configurationFile = WebConfigurationManager.OpenWebConfiguration("~\\Web.config");

MailSettingsSectionGroup mailSettings = configurationFile.GetSectionGroup("system.net/mailSettings") as MailSettingsSectionGroup;

///getting SMTP settings from web.config

int port = mailSettings.Smtp.Network.Port;

string host = mailSettings.Smtp.Network.Host;

string username = mailSettings.Smtp.Network.UserName;

string password = mailSettings.Smtp.Network.Password;

bool smtpSSL = true

string toEmail = ToTextBox.Text.ToString();

string toName = NameTextBox.Text.ToString();      
             
///Set your default receptient Name

///setting up SMTP server with alternate port [587]

///you can use default port [587]

SmtpClient SMTPServer = new SmtpClient(host, port);

SMTPServer.EnableSsl = smtpSSL;

///authanticating SMTP server

SMTPServer.Credentials = new NetworkCredential(username, password);

///adding FROM email info

MyMailMessage.From = new MailAddress(FromTextBox.Text.ToString());

///adding TO email info

MyMailMessage.To.Add(new MailAddress(toEmail, toName));

///setting up email subject and message body

MyMailMessage.Subject = SubTextBox.Text.ToString();

MyMailMessage.Body = " Name :" + NameTextBox.Text.ToString() + Environment.NewLine + " From :" +  FromTextBox.Text.ToString() + Environment.NewLine+ BodyTextBox.Text.ToString() ;

MyMailMessage.IsBodyHtml = true;

///trying to send email message

try

{

///Email message sent successfully!

SMTPServer.Send(MyMailMessage);

LabelEmail.Visible = true;

LabelEmail.Text = "Email sent";

LabelEmail.BackColor = Color.PowderBlue;

//LabelEmail.ForeColor = Color.White;

}

catch (SmtpException ex)

{

///there was an error sending email message

LabelEmail.Text = ex.Message.ToString();

}

}

Step5:

 In web.config file, after <system.net> tag, put this code:

<mailSettings>

<smtp from="gmail account id">

<!--<network host="localhost" password="" userName=""/>-->

<network defaultCredentials="true" host="smtp.gmail.com"  port="587" userName="ur gmail acount address" password="password of ur gmail id" />

</smtp>

</mailSettings>

Step6: Now run web form, Email is sending!

Now enter to and from email addresses and enjoying email sending!

After sending email u got text in label..