No such user here at System.Net.Mail.

Hi, i'm sending mail dynamically from my web application, but the following error is generated:

The server response was: No such user here at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, SmtpFailedRecipientException& exception)

I am using SMTP Authentication with SMTP Port 587, but with no success.

Any idea what might be the problem?

Thanks,
Rudolf

 

I don't have enough information to troubleshoot this problem. Give me a copy of your code (make sure you replace your email passwords with asteriks *****) and send me a link where I can see the error message on my browser.

 

Thanks Ray, find the code below. The smtpserver, username and password is set in the .config file.

string SiteAdminEmail = ConfigurationManager.AppSettings["SiteAdministratorEmailAddress"];
if (SiteAdminEmail != string.Empty)
{
MailAddress ToEmailAddress = new MailAddress(tmpEmailAddress, "*****");
string ToName = "******";
MailAddress FromEmailAddress = new MailAddress(SiteAdminEmail, "*****");
string FromName = "******";
string MailSubject = "******";
string MessageBody = "******";

//[Instantiate Template Mail Class]
SavantTemplateMailer AppMail = new SavantTemplateMailer();
AppMail.From = FromEmailAddress;
AppMail.FromName = FromName;
AppMail.To.Add(ToEmailAddress);
AppMail.Subject = MailSubject;
AppMail.IsBodyHtml = true;
//[Load Template from XSL File]
AppMail.MailXSLForm = Request.PhysicalApplicationPath + "/XSLMailTemplates/PasswordRequest.xsl";
//[Add XSL Parameters]
AppMail.AddToken("DATETIMEREF", DateTime.Now.ToString());
AppMail.AddToken("MESSAGEBODY", MessageBody);
//[Generate Mail Message Body]
AppMail.GenerateMailBody();
AppMail.SMTPServerName = System.Configuration.ConfigurationSettings.AppSettings["SMTPServer"];
AppMail.SMTPUserName = System.Configuration.ConfigurationSettings.AppSettings["SMTPUserName"];
AppMail.SMTPUserPassword = System.Configuration.ConfigurationSettings.AppSettings["SMTPUserPassword"];
AppMail.SMTPServerPort = 587;
AppMail.Send();
Response.Write(AppMail.ErrorMessage + AppMail.ErrorStackTrace);
MailSendBool = true;
}


The URL is as follows: http://heartwoo.w02.Winhost.com/forgotpassword.aspx

Thanks

 

I don't think you are passing the values correctly to these variables.


AppMail.SMTPServerName = System.Configuration.ConfigurationSettings.AppSett ings["SMTPServer"];
AppMail.SMTPUserName = System.Configuration.ConfigurationSettings.AppSett ings["SMTPUserName"];
AppMail.SMTPUserPassword = System.Configuration.ConfigurationSettings.AppSett ings["SMTPUserPassword"];

Try creating a simple test script. Use this kb article as an example.

http://support.Winhost.com/KB/a650/how-to-send-email-in-aspnet.aspx