Send Email using SMTP in web api vs asmx service - asp.net

Question

I am trying to send notification email in ASP.NET Web API. Following is the code
[HttpPost]
[Route("api/UpdateUser")]
public Foo UpdateUser(Foo vm)
{
/* some data base operations here....
......
......
*/
MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient("<SMTP Server>", 587);
mail.From = new MailAddress("test#test.com");
mail.To.Add("toemail#test.com");
mail.Subject = "You are subject";
mail.IsBodyHtml = true;
mail.Body = "Hello My Dear User";
SmtpServer.EnableSsl = true;
SmtpServer.Send(mail);
Foo newVM = new Foo();
}
But it throws following error:
System.Net.Mail.SmtpException: Failure sending mail.
---> System.Net.WebException: Unable to connect to the remote server
---> System.Net.Sockets.SocketException: A connection attempt failed because the connected
party did not properly respond after a period of time, or established connection failed
because connected host has failed to respond <server IP>:587
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, 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) at System.Net.PooledStream.Activate(Object owningObject, Boolean async, GeneralAsyncDelegate asyncCallback)
at System.Net.ConnectionPool.GetConnection(Object owningObject, GeneralAsyncDelegate asyncCallback, Int32 creationTimeout)
at System.Net.Mail.SmtpConnection.GetConnection(ServicePoint servicePoint) at System.Net.Mail.SmtpTransport.GetConnection(ServicePoint servicePoint)
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)
Now, i created an entirely new asp.net web project and placed same code in an asmx service (SOAP), and call it using soap client tools, it works just fine..
i deployed both in two separate IIS applications on same (test environment)server, only difference is web.api is a part of a ASP.NET MVC Application where as asmx service part of asp.net web application.
Result:
asmx service works but WEB API errors out with above error message.
Question is why ? what am i missing ?
I searched around and found following configuration could help
<system.net>
<defaultProxy>
<proxy usesystemdefault="False"/>
</defaultProxy>
:( but unfortunately in my case it didn't help...
Any one faced such issue ?

Answer 1

try this
var mailMessage = new MailMessage();
mailMessage.From = new MailAddress("yourmail");
mailMessage.To.Add("akash073#waltonbd.com");
mailMessage.CC.Add("akash073#gmail.com");
mailMessage.Subject = "Test";
mailMessage.Body = "Test";
var smtp = new SmtpClient();
smtp.Host = "your host";
smtp.Port = 25;//your port
smtp.Credentials = new System.Net.NetworkCredential("userName", "password");
smtp.Send(mailMessage);