This works with any SMTP server that permits authentication. It's certainly not limited to Google.

Protip: don't forget your try/catch block. Also, asynchronous method calls are a good idea for network calls. Don't block your UI thread with this call!

Yesthat... Agreeable, whenever going to production, a good program must catch all errors; I just wanted to make the article small and simple. I also agree 100% about the asynchronous call to avoid performance bottlenecks, but then again, we're talking GOOOGLE servers here ;-)

hi..when i tried to execute this code, it throws an exception,
can u tell me why?

code:
public string sendMail(string to, string from, string subject, string body)
{
MailMessage mail = new MailMessage();
mail.From = new MailAddress(from);
mail.To.Add(to);
mail.Subject = subject;
mail.Body = body;

SmtpClient cl = new SmtpClient("smtp.gmail.com",587);
cl.EnableSsl = true;
cl.Credentials = new NetworkCredential("ashin007@gmail.com", pass);
cl.Send(mail);
}

exception:
System.Net.Mail.SmtpException: Failure sending mail. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception) --- End of inner exception stack trace --- at System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6, Int32 timeout) at System.Net.PooledStream.Activate(Object owningObject, Boolean async, Int32 timeout, GeneralAsyncDelegate asyncCallback) at System.Net.PooledStream.Activate(Object owningObject, GeneralAsyncDelegate asyncCallback) at System.Net.ConnectionPool.GetConnection(Object owningObject, GeneralAsyncDelegate asyncCallback, Int32 creationTimeout) at System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpClient.GetConnection() at System.Net.Mail.SmtpClient.Send(MailMessage message) --- End of inner exception stack trace --- at System.Net.Mail.SmtpClient.Send(MailMessage message) at Service.sendMail(String to, String from, String subject, String body)

hi,

i was tring to send email using ASP with "CDO.Message" by connecting to google mail server .

With cdoConfig.Fields
.Item(cdoSendUsingMethod) = cdoSendUsingPort
.Item(cdoSMTPServer) = "mail.google.com"
.Update
End With

and got the following error message:

CDO.Message.1 error '80040213'
The transport failed to connect to the server.

any ideas ?

thanks