UploadFileWithWINSCP_WithPolly.cs

public void FTPZippedFile(some params....)
{
  //create and set variables
  
  var fallback = Policy  
      .Handle<SessionRemoteException>()
      .Fallback((ex)=> SendEmail(ex.Message));
      
  var fileUploadResult = fallback.Execute(() => 
              UploadFile(zipFileName, fullzipFilepath, 
                          transOptions, sessionOptions));
                          
  // do soemthing with result
}

public string UploadFile(string zipFileName, string fullZipFilePath, 
              TransferOptions transOptions, SessionOptions sessionOptions)
{
	using (var session = new Session())
	{		
       		session.Open(sessionOptions);
        
        	return session.PutFiles(
			      zipFileName, 
			      fullZipFilePath, 
			      false, 
			      transOptions);
      }
}