ATL CSMTPConnection error 10038   

I am using latest ATL CSMTPConnection class

========================================
CSMTPConnection conn;

if(!conn.Connect(m_bstrServer))
    return HRESULT_FROM_WIN32(GetLastError());

if( !conn.SendMessage(msg) )
    return HRESULT_FROM_WIN32(GetLastError());

conn.Disconnect();
==========================================

and getting next error in production environment

Number     : 10038
Description: An operation was attempted on something that is not a socket.

but I could not reproduce this error in my testing environment

Any idea?

Thank you,

Volodia.

date: Thu, 1 Mar 2007 07:48:35 -0500   author:   Volodia