I am trying to send an email(in c#) from worker role(Azure) with an attachment(from blob storage). I am able to send an email but attachment(word document) is blank. The following function is called from worker role.

    public void sendMail(string blobName)
    { 
            InitStorage();//Initialize the storage
            var storageAccount = CloudStorageAccount.FromConfigurationSetting("DataConnectionString");
            container = blobStorage.GetContainerReference("Container Name");
            CloudBlockBlob blob = container.GetBlockBlobReference(blobName);

            if (File.Exists("demo.doc"))
                File.Delete("demo.doc");

            FileStream fs = new FileStream("demo.doc", FileMode.OpenOrCreate);
            blob.DownloadToStream(fs);                
            Attachment attach = new Attachment(fs,"Report.doc");
            System.Net.Mail.MailMessage Email = new System.Net.Mail.MailMessage("[email protected]", "[email protected]");
            Email.Subject = "Text fax send via email";
            Email.Subject = "Subject Of email";
            Email.Attachments.Add(attach);
            Email.Body = "Body of email";
            System.Net.Mail.SmtpClient client = new SmtpClient("smtp.live.com", 25);
            client.DeliveryMethod = SmtpDeliveryMethod.Network;
            client.EnableSsl = true;
            client.Credentials = new NetworkCredential("[email protected]", Password);
            client.Send(Email);
            fs.Flush();
            fs.Close();
            Email.Dispose();                       
    }

Please tell me where I am doing wrong?