Отправка письма на E-mail

 Backendless.initApp(this, APP_ID, SECRET_KEY, appVersion);

AsyncCallback<Void> responder = new AsyncCallback<Void>()
{
  @Override
  public void handleResponse( Void response )
  {
    System.out.println( "[ASYNC] email has been sent" );
  }
 
  @Override
  public void handleFault( BackendlessFault fault )
  {
    System.out.println( "error sending email - " + fault.getMessage() );
  }
};
 
// async request. Plain text message to one recipient
Backendless.Messaging.sendTextEmail( "Reminder", "Hey JB! Your car will be ready by 5pm", "james.bond@mi6.co.uk", responder );
 
// sync request. HTML messahe to multiple recipients
ArrayList<String> recipients = new ArrayList<String>();
recipients.add( "mom@gmail.com" );
recipients.add( "dad@gmail.com" );
 
String mailBody = "Guys, the dinner last night was <b>awesome</b>";
 
Backendless.Messaging.sendHTMLEmail( "Dinner", mailBody, recipients );
 
System.out.println( "[SYNC] email has been sent" );

package ru.lux_tv.screen;
 
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.content.Intent;
import android.view.MenuItem;
 
import com.backendless.Backendless;
 
public class ConnectActivity extends AppCompatActivity implements View.OnClickListener {
 
public static final String APP_ID = "------------------------------------------";
public static final String SECRET_KEY = "--------------------------------------";
public static final String VERSION = "v1";
 
private Button btnConSend;
private Button btnConClear;
 
private EditText poleFio;
private EditText poleTel;
private EditText poleSoob;
 
 
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.connect);
 
Backendless.initApp(this, APP_ID, SECRET_KEY, VERSION);
 
ActionBar actionBar = getSupportActionBar();
actionBar.setHomeButtonEnabled(true);
actionBar.setDisplayHomeAsUpEnabled(true);
 
btnConSend = (Button) findViewById(R.id.btnConSend);
btnConSend.setOnClickListener(this);
 
btnConClear = (Button) findViewById(R.id.btnConClear);
btnConClear.setOnClickListener(this);
 
poleFio = (EditText) findViewById(R.id.poleFio);
poleTel = (EditText) findViewById(R.id.poleTel);
poleSoob = (EditText) findViewById(R.id.poleSoob);
 
}
 
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.btnConClear:
poleFio.setText("");
poleTel.setText("");
poleSoob.setText("");
break;
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
startActivity(new Intent(this, MainActivity.class));
return true;
default:
return super.onOptionsItemSelected(item);
}
}
 
}