Sending Mail woes with System.Net.Mail

When sending email I keep getting the following error:

[email protected] | System.Net.Mail.SmtpFailedRecipientException: Mailbox unavailable. The server response was: web139.discountasp.net (web139) [64.209.135.9]:3890 is currently not

The errormessage is normally truncated.

The address in the To: field can vary from that above but isnormally outside of my domain viz aquarius.com.au . The strange thing is that the Bcc: email is being delivered fine. Here's my code edited for brevity:

SmtpClient myMailClient = new SmtpClient();
MailMessage myMailMessage = new MailMessage();
string mailHost = "smtp.aquarius.com.au";
string userName = "[email protected]";
string password = "xxxxx";
string fromName = "Sales";
string fromAddress = "[email protected]";
emailBody = "Message body here";
string address = GetValue("email");
string fullName = GetValue("firstName") + " " + GetValue("lastName");
myMailMessage.To.Add(new MailAddress(address, fullName));
myMailMessage.Bcc.Add(new MailAddress("[email protected]", "Sales Department"));
myMailMessage.From = new MailAddress(fromAddress, fromName);
myMailMessage.Subject =" Licence Purchase";
myMailMessage.IsBodyHtml = true;
myMailMessage.Priority = MailPriority.Normal;
myMailClient.Host = mailHost;
myMailClient.Port = 25;
myMailClient.DeliveryMethod = SmtpDeliveryMethod.Network;
NetworkCredential myMailCredential = new NetworkCredential();
myMailCredential.UserName = userName;
myMailCredential.Password = password;
myMailClient.UseDefaultCredentials = false;
myMailClient.Credentials = myMailCredential;
myMailClient.Send(myMailMessage);

I am not using any email specific settings in my web.config file.

I can't find any KB articles on the subject so can anyone help me please.

Thanks.

 

Hi,
Try using 'localhost' as the host.

 

Hi Glen,





I use something like this, seems to work everytime; I've left out a lot of the intantiation of objects and error trapping etc for brevity, the full procedure is quite lengthy, uses LinkedResources and AlternateViews etc...


' Set the Priority property of the mail message [Low=0,Normal=1,High=2]
objMailMessage.Priority = System.Net.Mail.MailPriority.Normal


' Populate the smtp server name
strSmtpMailServer = "smtp.yourdomain.com"


' Populate the smtp user name credential
strSmtpUsername = "[email protected]"


' Populate the smtp password credential
strSmtpPassword = "password"


' Create the NetworkCredential object
Dim objNetworkCredential As New System.Net.NetworkCredential(strSmtpUsername, strSmtpPassword)


' Create the SmtpClient object
Dim objSmtpClient As New System.Net.Mail.SmtpClient(strSmtpMailServer)


' Parse the NetworkCredential to the smtpclient object
objSmtpClient.Credentials = objNetworkCredential


' Send the message.
objSmtpClient.Send(objMailMessage)

Alan