submit form and redirect to another page after sending email with laravel

i can send the email without any problem, but form still like not submitted (refresh) or redirect to another page>>>>

this is my function to send an email:

function sendEmail(Request $request, $sendTo) {
            $request->validate([
                'name' => ['required', 'min:3'],
                'email' => ['required', 'email'],
                'subject' => ['required', 'min:3'],
                'message' => ['required', 'min:3', 'max:300'],
            ]);

            try {

                $data = (object) $request->all();
                event(new ContactEvent($data, $sendTo));
                redirect()->back()->with('msg', "Email has sent successfully");
            }catch(\Exception $e) {
                redirect()->back()->with('msg', "Email not sent");
            }

here the event:

class ContactEvent
{
    use Dispatchable, InteractsWithSockets, SerializesModels;

    /**
     * Create a new event instance.
     *
     * @return void
     */

     public $data;
     public $sendTo;

    public function __construct($data, $sendTo)
    {
        $this->data = $data;
        $this->data = $sendTo;
    }

    /**
     * Get the channels the event should broadcast on.
     *
     * @return \Illuminate\Broadcasting\Channel|array
     */
    public function broadcastOn()
    {
        return new PrivateChannel('channel-name');
    }

and the listener:

class ContactListener
{
    /**
     * Create the event listener.
     *
     * @return void
     */

    public function __construct()
    {

    }

    /**
     * Handle the event.
     *
     * @param  \App\Events\ContactEvent  $event
     * @return void
     */
    public function handle(ContactEvent $event)
    {
       Mail::to($event->sendTo)->send(new ContactMail($event->data));
    }

and the email class:

class ContactMail extends Mailable implements ShouldQueue
{
    use Queueable, SerializesModels;

    /**
     * Create a new message instance.
     *
     * @return void
     */
    public $data;

    public function __construct($data)
    {
        $this->data = $data;
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        return $this->subject($this->data->subject)->view('email.contact');
    }
}

and the form to send an email:

<form action="{{ route('send-email', $info->email) }}" method="post" class="php-email-form">
                @csrf
              <div class="form-row">
                <div class="form-group col-md-12">
                  <label for="name">Your Name</label>
                  <input type="text" name="name" class="form-control" id="name" data-rule="minlen:4" data-msg="Please enter at least 4 chars" />
                  <div class="validate"></div>
                </div>
                <div class="form-group col-md-12">
                  <label for="name">Your Email</label>
                  <input type="email" class="form-control" name="email" id="email" data-rule="email" data-msg="Please enter a valid email" />
                  <div class="validate"></div>
                </div>
              </div>
              <div class="form-group">
                <label for="name">Subject</label>
                <input type="text" class="form-control" name="subject" id="subject" data-rule="minlen:4" data-msg="Please enter at least 8 chars of subject" />
                <div class="validate"></div>
              </div>
              <div class="form-group">
                <label for="name">Message</label>
                <textarea class="form-control" name="message" rows="10" data-rule="required" data-msg="Please write something for us"></textarea>
              </div>

              <div class="mb-3">
                <div class="loading">Loading</div>
                <div class="error-message"></div>
                <div class="sent-message">Your message has been sent. Thank you!</div>
              </div>

              <div class="text-center"><input type="submit" class="btn btn-dark rounded" value="Send"></div>
            </form>