ASP.NET

If you want to send email using your Gmail account or using Gmail's smtp server in ASP.NET application or if you don't have a working smtp server to send mails using your ASP.NET application or aspx page than sending e-mail using Gmail is best option.

you need to write code like this

First of all add below mentioned namespace in code behind of aspx page from which you want to send the mail.

using System.Net.Mail;


Now write this code in click event of button

C# code

protected void Button1_Click(object sender, EventArgs e)
{
MailMessage mail = new MailMessage();
mail.To.Add("abc@gmail.com");
mail.To.Add("efg@yahoo.com");
mail.From = new MailAddress("xyz@gmail.com");
mail.Subject = "Email using Gmail";

string Body = "Hi, this mail is to test sending mail"+
"using Gmail in ASP.NET";
mail.Body = Body;

mail.IsBodyHtml = true;
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
smtp.Credentials = new System.Net.NetworkCredential
("YourUserName@gmail.com","YourGmailPassword");
smtp.EnableSsl = true;
smtp.Send(mail);
}


VB.NET code

Imports System.Net.Mail

Protected Sub Button1_Click
(ByVal sender As Object, ByVal e As EventArgs)
Dim mail As MailMessage = New MailMessage()
mail.To.Add("jainamit.agra@gmail.com")
mail.To.Add("amit_jain_online@yahoo.com")
mail.From = New MailAddress("jainamit.agra@gmail.com")
mail.Subject = "Email using Gmail"

String Body = "Hi, this mail is to test sending mail"+
"using Gmail in ASP.NET"
mail.Body = Body

mail.IsBodyHtml = True
Dim smtp As SmtpClient = New SmtpClient()
smtp.Host = "smtp.gmail.com"
smtp.Credentials = New System.Net.NetworkCredential
("YourUserName@gmail.com","YourGmailPassword")
smtp.EnableSsl = True
smtp.Send(mail)
End Sub