File getdbdatapath= Environment.getDataDirectory();
String currentDBPath = "/data/com.example.appname/databases/dbname/";
File path=new File(getdbdatapath, currentDBPath);
Log.d("Path", path.toString());

//File extdb= Environment.getExternalStorageDirectory();
//String extpath=extdb+"/NewFolder/dbname";
//File pathp=new File(extdb, extpath);
//Log.d("New Path", pathp.toString());

Log.i(getClass().getSimpleName(), "send  task - start");

final Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);

String address = "clientmailid@gmail.com";
String subject = "Application Database";
String emailtext = "Please check the database as attachement";

//emailIntent.setType("Application/database");
//emailIntent.setType("text/html");
//emailIntent.setType("message/rfc822");
emailIntent.setType("vnd.android.cursor.dir/email");

emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, new String[] { address });

emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, subject);

emailIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + path));

emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, emailtext);

startActivity(Intent.createChooser(emailIntent, "Send Mail..."));