agorakit/agorakit

use Mail;
use App\Mail\ContactUser;
class UserController extends Controller
{
    public function contact(User $user, Request $request)
    {
        $from_user = Auth::user();
        $to_user = $user;

        if ($to_user->verified == 1) {
            if ($request->has('body')) {
                $body = $request->input('body');
                Mail::to($to_user)->send(new ContactUser($from_user, $to_user, $body, $request->has('reveal_email')));

                flash(trans('messages.message_sent'));

                return redirect()->route('users.contactform', $to_user);
            } else {
                flash(__('Please type a message'));

                return redirect()->back();
            }
        } else {
            flash(__('The user you are trying to contact did not verify his/her email'));

            return redirect()->back();
        }
    }
}

use App\User;
use Illuminate\Mail\Mailable;

class ContactUser extends Mailable
{
    public $body;
    public $to_user;
    public $from_user;

    public function __construct(User $from_user, User $to_user, $body, $reveal_email = false)
    {
        $this->body = $body;
        $this->from_user = $from_user;
        $this->to_user = $to_user;
        $this->reveal_email = $reveal_email; // wether to send as the sender user email or use the generic noreply from
        if ($reveal_email) {
            $this->replyTo($from_user);
        }
    }

    public function build()
    {
            return $this->markdown('emails.contact')
            ->from(config('mail.noreply'), config('mail.from.name'))
            ->subject('['.setting('name').'] '.trans('messages.a_message_for_you'));
        
    }
}