How to Send Mail in Asp.net in C# [duplicate] - asp.net

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Closed 10 years ago.
Possible Duplicate:
No connection could be made because the target machine actively refused it?
I Face Critical Problem During Sending Mail in Asp.net please tell me Solution if Anyone know About this.
This Is My Code for Sending Mail
MailMessage mm = new MailMessage();
SmtpClient smtp = new SmtpClient();
mm.From = new MailAddress(txtfrom.Text);
mm.To.Add(new MailAddress(txtto.Text));
mm.Subject = txtsubject.Text;
mm.Body = txtmessage.Text;
mm.IsBodyHtml = true;
smtp.Host = "smtp.gmail.com"; //You can add this in the webconfig
smtp.EnableSsl = true;
System.Net.NetworkCredential NetworkCred = new System.Net.NetworkCredential();
NetworkCred.UserName = "mymail#gmail.com";
NetworkCred.Password = "my password";
smtp.UseDefaultCredentials = true;
smtp.Credentials = NetworkCred;
smtp.Port = 587; //this is Gmail port for e-mail
smtp.Send(mm);//send an e-mail
The Problem is That when i Click on Send Button it Show following Error
"No connection could be made because the target machine actively
refused it 173.194.79.109:587"
Please tell me Solution ..

Answer 1

you need to set false the UseDefaultCredentials property.
smtp.UseDefaultCredentials = false;

Answer 2

That error message usually means a firewall is blocking your connection. Instead of using your machine name "173.194.79.109:587", try using "localhost".

Answer 3

protected void SendMail_Click(object sender, EventArgs e)
{
var fromAddress = new MailAddress(fromid.Text, fromname.Text);
var toAddress = new MailAddress(toid.Text, toname.Text);
string fromPassword = pswd.Text;
string subject = subjectbox.Text;
string body = bodybox.Text;
var smtp = new SmtpClient
{
Host = "smtp.gmail.com",
Port = 587,
EnableSsl = true,
DeliveryMethod = SmtpDeliveryMethod.Network,
Credentials = new NetworkCredential(fromAddress.Address, fromPassword),
Timeout = 20000
};
using (var message = new MailMessage(fromAddress, toAddress)
{
Subject = subject,
Body = body,
IsBodyHtml = false
})
{
smtp.Send(message);
}
}

Answer 4

This is the function which i checked to send mail...and it's working properly.
`
private static bool testsendemail(MailMessage messageBody)
{
try
{
MailMessage message1 = new MailMessage();
SmtpClient smtpClient = new SmtpClient();
string msg = string.Empty;
MailAddress fromAddress = new MailAddress("FromMail#Test.com");
message1.From = fromAddress;
message1.To.Add("ToMail#Test1.com");
message1.Subject = "This is Test mail";
message1.IsBodyHtml = true;
message1.Body ="You can write your body here"+messageBody;
smtpClient.Host = "smtp.mail.yahoo.com"; // We use yahoo as our smtp client
smtpClient.Port = 587;
smtpClient.EnableSsl = false;
smtpClient.UseDefaultCredentials = true;
smtpClient.Credentials = new System.Net.NetworkCredential("SenderMail#yahoo.com", "YourPassword");
smtpClient.Send(message1);
}
catch
{
return false;
}
return true;
}`
Thank You.

Answer 5

This is how I use it.
SmtpClient gglClient = new SmtpClient("173.194.67.108", 587);
gglClient.UseDefaultCredentials = false;
gglClient.DeliveryMethod = SmtpDeliveryMethod.Network;
gglClient.Credentials = new NetworkCredential("username#gmail.com", "password");
gglClient.EnableSsl = true;
MailMessage msg = new MailMessage("", email);
msg.Subject = "";
msg.Body = #" ";
msg.IsBodyHtml = false;
msg.BodyEncoding = UTF8Encoding.UTF8;
gglClient.Timeout = 8000;
ServicePointManager.ServerCertificateValidationCallback =
delegate(object s, X509Certificate certificate, X509Chain chain,
SslPolicyErrors sslPolicyErrors) { return true; };
gglClient.Send(msg);