Send email with System.Web.Mail

Question

I want send email in asp.

I use this code

using System.Web.Mail;

MailMessage msg = new MailMessage();
msg.To = "[email protected]";
msg.From = "[email protected]";
msg.Subject = "Send mail sample";
msg.BodyFormat = MailFormat.Html;
string msgBody="Hello My Friend. This is a test.";
msg.Body = msgBody ;
SmtpMail.SmtpServer = "localhost";
SmtpMail.Send(msg);

But i get error :

Bad sequence of commands. The server response was: This mail server requires authentication when attempting to send to a non-local e-mail address. Please check your mail client settings or contact your administrator to verify that the domain or address is defined for this server.

How to send email with asp?

Answer 1

I use This code .

 MailMessage msg = new MailMessage();
 msg.Body = "Body";

 string smtpServer = "mail.DomainName";
 string userName = "[email protected]";
 string password = "MyPassword";
 int cdoBasic = 1;
 int cdoSendUsingPort = 2;
 if (userName.Length > 0)
  {
    msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserver", smtpServer);
    msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport", 25);
    msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusing", cdoSendUsingPort);
    msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", cdoBasic);
    msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", userName);
    msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", password);
    }
    msg.To = user.Email;
    msg.From = "[email protected]";
    msg.Subject = "Subject";
    msg.BodyEncoding = System.Text.Encoding.UTF8;
    SmtpMail.SmtpServer = smtpServer;
   SmtpMail.Send(msg);