asp.net - 使用 System.Web.Mail 发送电子邮件

Question

我想在 asp 中发送电子邮件。

我用这个代码

using System.Web.Mail;

MailMessage msg = new MailMessage();
msg.To = "aspnet@yahoo.com";
msg.From = "info@mysite.com";
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);

但我得到错误:

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.

如何用asp发送邮件？

Answer 1

我使用此代码。

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

 string smtpServer = "mail.DomainName";
 string userName = "info@mysite.com";
 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 = "info@Mysite.com";
    msg.Subject = "Subject";
    msg.BodyEncoding = System.Text.Encoding.UTF8;
    SmtpMail.SmtpServer = smtpServer;
   SmtpMail.Send(msg);