I just copied the readme file and put it into an example project, Im trying to send a email but it always have the same error.

PlatformException(not_available, No email clients found!, null, null)

There’s my code:

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Mandar Correo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Manda Correo'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Title'),
        centerTitle: true,
      ),
      body: Center(
        child: ElevatedButton(
          style: ElevatedButton.styleFrom(
            padding: EdgeInsets.all(20),
            textStyle: TextStyle(fontSize: 24),
          ),
          child: const Text('Enviar Correo'),
          onPressed: sendMail,
        ),
      ),
    );
  }
}

sendMail() async {
  final Email email = Email(
    body: "example",
    subject: "title",
    recipients: ['bb@bb'],
    cc: ['aaAhmad Khan Kolaachi'],
    isHTML: false,
  );

  String platformResponse;

  try {
    await FlutterEmailSender.send(email);
    platformResponse = 'success';
  } catch (error) {
    print(error);
    platformResponse = error.toString();
  }
}

AndroidManifest.xml, it says that Android v.11 needs some permisions. So i just copy them.