Error sending filled form via email

This is the code I use to send my form via email:

protected void sendMail(string strFrom, string strBody)
{
//create the mail message
MailMessage mail = new MailMessage();

//set the addresses
mail.From = new MailAddress(strFrom);
mail.To.Add("myEmail@myDomain.com");

//set the content
mail.Subject = txtSubject.Text;
mail.Body = strBody;
mail.IsBodyHtml = false;

//send the message
SmtpClient smtp = new SmtpClient("noAuth.myDomain.com");
smtp.Send(mail);
}

And this is the error message I received:

Server Error in '/home' Application.
--------------------------------------------------------------------------------

Unable to read data from the transport connection: net_io_connectionclosed.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.IOException: Unable to read data from the transport connection: net_io_connectionclosed.

Source Error:

Line 84: //send the message
Line 85: SmtpClient smtp = new SmtpClient("noAuth.myDomain.com");
Line 86: smtp.Send(mail);
Line 87: }
Line 88: }

Source File: e:\wwwroot\home\email.aspx.cs Line: 86

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Error sending filled form via email

Will Pearson
Are you sure there is a Smtp server running on that domain and on port 25, if it is running on a other port you need to specify that to.

Have you tried other Smtp servers, it doesn't seems to be an error in your code but just an error in the connection with the Smtp server.
vickey37139
Just curious, how do I use the specify credentials I like to try the server that requires authentication and see if it works.
Jean Pierre LaBonte
ljCharlie,
you can write:

smtp.Credentials = new NetworkCredential ("myusername", "mypassword");

this should go before the Send ().

Regards
--mc

Santiago C.

Use a mailmessage and specify the fields sendusername and sendpassword, here is a working example:

System.Web.Mail.MailMessage mail = new System.Web.Mail.MailMessage();
mail.From = "pj.vandesande@gmail.com";
mail.To = "somebody@msn.com";
mail.Subject = "Hello message!";
mail.Body = "Body of the message";
mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate","1"); //basic authentication
mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", "USERNAME");
mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", "PASSWORD");

System.Web.Mail.SmtpMail.SmtpServer = "mysmtp.server.com";

System.Web.Mail.SmtpMail.Send( mail );

Raschmann
You need the System.Net namespace.

--mc
mroctober
You have to use the System.Net namespace. Put using System.Net; on top of you file or use:

smtp.Credentials = new System.Net.NetworkCredential ("myusername", "mypassword");
KrisJ
No, it still not working. However, this is the ASP version and it's working.

Dim ObjSendMail
Dim iConf
Dim myField

Set ObjSendMail = Server.CreateObject("CDO.Message")
Set iConf = CreateObject("CDO.Configuration")
Set myField = iConf.Fields

myField("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
myField("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "noAuth.myDomain.com"
myField("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25

myField.Update

Set ObjSendMail.Configuration = iConf

ObjSendMail.Subject = request.Form("subject")
ObjSendMail.From = "webUser@yahoo.com"

ObjSendMail.HTMLBody = unescape(request.Form("body"))

do until emailRS.EOF
if len(emailRS("email")) > 5 then
'response.Write("sending mail")
ObjSendMail.To = emailRS("email")
ObjSendMail.Send
end if
emailRS.MoveNext
Loop

So how do I do the same thing in C#
jnelsonjr
Thanks! This is the error I received:

The type or namespace name 'NetworkCredential' could not be found (are you missing a using directive or an assembly reference )
Roxanne163
Many thanks for the response. So if it is port 25 then I don't have to specify, correct I am pretty sure there is a smtp server because it is working in my PHP version of the web form.
Error sending filled form via email

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