连接失败,因为目标机器拒绝了127.0.0.1:25上的请求。
异常信息: System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 127.0.0.1:25
源错误:
在当前网页请求执行期间出现未处理的异常。请查看堆栈跟踪以获取有关错误的更多信息以及代码中的错误位置。
堆栈跟踪:
[SocketException (0x274d): No connection could be made because the target machine actively refused it 127.0.0.1:25] System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) +239
System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP) +35
System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception) +224[WebException: Unable to connect to the remote server]
System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6, Int32 timeout) +5483819
System.Net.PooledStream.Activate(Object owningObject, Boolean async, Int32 timeout, GeneralAsyncDelegate asyncCallback) +202
System.Net.PooledStream.Activate(Object owningObject, GeneralAsyncDelegate asyncCallback) +21
System.Net.ConnectionPool.GetConnection(Object owningObject, GeneralAsyncDelegate asyncCallback, Int32 creationTimeout) +332 System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) +160
System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) +159
System.Net.Mail.SmtpClient.GetConnection() +35 System.Net.Mail.SmtpClient.Send(MailMessage message) +1213[SmtpException: Failure sending mail.] System.Net.Mail.SmtpClient.Send(MailMessage message) +1531
Checkout.btnSend_Click(Object sender, EventArgs e) +2675
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +111
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +110
在真实连接中无法发送邮件,但在我的本地可以。
请大家帮帮忙。
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565
版本信息:Microsoft .NET Framework Version:2.0.50727.3615; ASP.NET Version:2.0.50727.3618
这是我的C#代码。
SmtpClient SmtpMail = new SmtpClient();
SmtpMail.Host = "localhost";
//delete session cookie
Response.Cookies["session"].Expires = DateTime.Now.AddYears(-30);
SmtpMail.Send(objEmail);
telnet localhost 25
吗? - Daniel Hilgarth