Server Error in '/' Application.

The message could not be sent to the SMTP server. The transport error code was 0x80040217. The server response was not available

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.Runtime.InteropServices.COMException: The message could not be sent to the SMTP server. The transport error code was 0x80040217. The server response was not available


Source Error:

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

  <%@ Page Language="C#" Debug="true" %>

or:

2) Add the following section to the configuration file of your application:

<configuration>
   <system.web>
       <compilation debug="true"/>
   </system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

Stack Trace:


[COMException (0x80040211): The message could not be sent to the SMTP server. The transport error code was 0x80040217. The server response was not available
]

[TargetInvocationException: Exception has been thrown by the target of an invocation.]
   System.RuntimeType.InvokeDispMethod(String name, BindingFlags invokeAttr, Object target, Object[] args, Boolean[] byrefModifiers, Int32 culture, String[] namedParameters) +0
   System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams) +2260
   System.Web.Mail.LateBoundAccessHelper.CallMethod(Object obj, String methodName, Object[] args) +80

[HttpException (0x80004005): The message could not be sent to the SMTP server. The transport error code was 0x80040217. The server response was not available
]
   System.Web.Mail.LateBoundAccessHelper.CallMethod(Object obj, String methodName, Object[] args) +130
   System.Web.Mail.CdoSysHelper.Send(MailMessage message) +1604
   System.Web.Mail.SmtpMail.Send(MailMessage message) +174
   ErrorLog.SendMail(String strMessage) +238
   ErrorLog.RaiseError(String strMessage) +59
   template_area.HandleException(Exception ex) +244
   template_area.Page_Load(Object sender, EventArgs e) +423
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
   System.Web.UI.Control.OnLoad(EventArgs e) +95
   System.Web.UI.Control.LoadRecursive() +59
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +678


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4063.0