ASP.net,C# Code Send Mail From GMail Account
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net.Mail;
using System.Net;
public partial class _Default : System.Web.UI.Page
{
protected void btn_Click(object sender, EventArgs e)
{
MailMessage MyMailMessage = new MailMessage("FromMailId@gmail.com", "TOMailId@hotmail.com",
"write your subject Here ", "Hi,This is the test message ");
MyMailMessage.IsBodyHtml = false;
NetworkCredential mailAuthentication = new NetworkCredential("FromMailId@gmail.com", "Password");
SmtpClient mailClient = new SmtpClient("smtp.gmail.com", 587);
mailClient.EnableSsl = true;
mailClient.UseDefaultCredentials = false;
mailClient.Credentials = mailAuthentication;
mailClient.Send(MyMailMessage);
}
}
ASP.net,C# Code Send Mail From Hotmail Account
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net.Mail;
using System.Net;
public partial class _Default : System.Web.UI.Page
{
protected void btn_Click(object sender, EventArgs e)
{
MailMessage MyMailMessage = new MailMessage("FromMailId@hotmail.com", "TOMailId@yahoo.com",
"write your subject Here ", "Hi,This is the test message. ");
MyMailMessage.IsBodyHtml = false;
NetworkCredential mailAuthentication = new NetworkCredential("FromMailId@hotmail.com", "Password");
SmtpClient mailClient = new SmtpClient("smtp.live.com", 25);
mailClient.EnableSsl = true;
mailClient.UseDefaultCredentials = false;
mailClient.Credentials = mailAuthentication;
mailClient.Send(MyMailMessage);
}
}
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Munendra's Blog 
I tried to run your code in Visual Studio 2010 with my credentials (which I’ve removed below) as follows but it threw exception;
————————————————————-
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Web;
using System.Net;
using System.Net.Mail;
namespace mail_mail
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
MailMessage MyMailMessage = new MailMessage(“FromMailId@gmail.com”, “FromMailId@gmail.com”,
“write your subject Here “, “Hi,This is the test message “);
MyMailMessage.IsBodyHtml = false;
NetworkCredential mailAuthentication = new NetworkCredential(“FromMailId@gmail.com”, “password”);
SmtpClient mailClient = new SmtpClient(“smtp.gmail.com”, 587);
mailClient.EnableSsl = true;
mailClient.UseDefaultCredentials = false;
mailClient.Credentials = mailAuthentication;
mailClient.Send(MyMailMessage);
}
}
}
————————————————————-
This is the exception:@line –> mailClient.Send(MyMailMessage);
System.Net.Mail.SmtpException was unhandled
Message=Failure sending mail.
Please Help me get out of this exception!
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Nice Article…No error found..Excellent…
From Bangladesh :john:Narayangonj
thank you man.. you saved my time 🙂