有谁在2.0下用SmtpClient成功发送过需要身份验证的邮件？

[superrg]

我试了半天了，还是不能成功发送，一直报“语法错误，无法识别命令。 服务器响应为: authentication failed.”，smtp服务器，端口，用户名，密码这几个绝对没有错。
源代码如下：

SmtpClient mailClient = new SmtpClient("xxx.xxx.xxx.xxx");

mailClient.EnableSsl = false;
mailClient.UseDefaultCredentials = false;
mailClient.DeliveryMethod = SmtpDeliveryMethod.Network;

mailClient.Credentials = new System.Net.NetworkCredential("[e-mail]", "xxxxx");

mailClient.Send(mail);

不知道是不是2.0带的库有问题？

[Knight94]

change
mailClient.Credentials = new System.Net.NetworkCredential("[e-mail]", "xxxxx");

with
mailClient.Credentials = new System.Net.NetworkCredential("xxx", "xxxxx");

[Knight94]

使用"@"字符前的子串作为用户名试试。

[Knight94]

这有个例子，你对比一下
http://www.codeproject.com/useritems/SmtpEmailComponent.asp

[marvelstack]

try
http://www.systemwebmail.com/default.aspx

[superrg]

试了，估计是2.0下的smtpclient有问题，非常不稳定。

[孟子E章]

protected void btnSubmit_Click(object sender, EventArgs e)
{
try
{

MailMessage message = new MailMessage(txtFrom.Text, txtTo.Text, txtSubject.Text, txtBody.Text);
SmtpClient emailClient = new SmtpClient(txtSMTPServer.Text);
System.Net.NetworkCredential SMTPUserInfo = new System.Net.NetworkCredential(txtSMTPUser.Text, txtSMTPPass.Text);
emailClient.UseDefaultCredentials = false;
emailClient.Credentials = SMTPUserInfo;
emailClient.Send(message);
litStatus.Text = "Message Sent";

}
catch (Exception ex)
{
litStatus.Text=ex.ToString();
}
}

[孟子E章]

http://www.aspnettutorials.com/downloads/email/SendEmailwithAuthenticationCSharp2005.zip

[migr]

不错的样例。