sending mail fail through app in windows 2008 server

while sending the mails through .net windows application 2.0 from windows
2008 server (application is running in windows 2008) which is raised the
following error.
System.Net.WebException: Unable to connect to the remote server

{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 10.200.206.80:25
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot,
SocketAddress socketAddress)
at System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP)
at System.Net.ServicePoint.ConnectSocketInternal(Bool ean connectFailure,
Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState
state, IAsyncResult asyncResult, Int32 timeout, Exception& exception)

but same application is working in some different machines in xp or win 2003.

"sending mail fail through app in windows" <sending mail fail through app in
> wrote in message
news:9BB301DB-2361-4A70-8A68-...
> while sending the mails through .net windows application 2.0 from windows
> 2008 server (application is running in windows 2008) which is raised the
> following error.
> System.Net.WebException: Unable to connect to the remote server

And this has to do with WSUS . . . How?

> System.Net.Sockets.SocketException: No connection could be made because
> the
> target machine actively refused it 10.200.206.80:25

Whatever it is... it's a permissions error. The email server is DENYING the
connection.

> but same application is working in some different machines in xp or win
> 2003.

Then you need to do for this machine what you've already done for those
other machines.



--
Lawrence Garvin, M.S., MCITP:EA, MCDBA, MCSA
Principal/CTO, Onsite Technology Solutions, Houston, Texas
Microsoft MVP - Software Distribution (2005-2010)

My Blog: http://onsitechsolutions.spaces.live.com
Microsoft WSUS Website: http://www.microsoft.com/wsus
My MVP Profile: http://mvp.support.microsoft.com/pro...awrence.Garvin