Multi select check box in laravel tables

I have a page where i am showing some content in tables. I am giving check box for each and row and a button on top. Now i want to send the selected check box id's to the controller. this is what i tried till now. Please some one help me with that, i have been trying this from 4 days.

 <a href="sendmail" id="btn-mail" class="btn btn-primary">send mail</a>
          <form id="active">
                    <table id="datatable-responsive" class="table table-striped table-bordered dt-responsive nowrap" cellspacing="0" width="100%"  data-click-to-select="true">
                      <thead>
                        <tr>
                         <th>Select</th>
                          <th>Added By</th>
                          <th>Customer Name</th>
                          <th>State</th>
                          <th>District</th>
                          <th>City/Taluk/Mandal</th>
                          <th>Address</th>
                          <th>Phone Number</th>
                          <th>Ordered Date</th>
                          <th>Device</th>
                          <th>Quantity</th>
                          <th>Ready to ship</th>
                          <th>Language</th>
                          <th>Ordered Using</th>
                          <th>Action</th>
                          <th>More Option</th>
                        </tr>
                      </thead>
                      <tbody>
                        
                       @foreach($enqu as $enq )
                       <tr>
                       <td><input type="checkbox" name="checkbox[]" value="<? php echo $enq->id; ?>"</td>
                       <td>{{ $enq->name}}</td>
                        <td>{{ $enq->customer_name}}</td>
                        <td>{{ $enq->state}}</td>
                        <td>{{ $enq->district}}</td>
                        <td>{{ "$enq->city"}}</td>
                        <td>{{ "$enq->street"}}, {{ "$enq->locality"}}, {{"$enq->PIN_code"}}</td>         
                        <td>{{ $enq->phone}}</td>
                        <td>{{ $enq->created_at}}</td> 

                        <td>@if($enq->enquiry_for == 1)
                                SAMRAT 
                              @elseif ($enq->enquiry_for == 2)
                                YUVARAJ
                              @elseif ($enq->enquiry_for == 3)
                                MAHARAJ
                              @elseif ($enq->enquiry_for == 4)
                                SAMANTH
                              @elseif ($enq->enquiry_for == 5)
                                BHEEMA 
                              @elseif ($enq->enquiry_for == 6)
                                DEALERSHIP
                              @elseif ($enq->enquiry_for == 7)
                                RAKSHAK  
                              @endif </td>
                    
                        <td>{{ $enq->quantity}}</td>
                        <td>{{ $enq->finished}}</td>

                        <td>@if($enq->language == 1)
                               English 
                              @elseif ($enq->language == 2)
                               Telugu
                              @elseif ($enq->language == 3)
                               Kannada
                              @elseif ($enq->language == 4)
                               Tamil
                              @elseif ($enq->language == 5)
                               Hindi
                              @elseif ($enq->language == 6)
                               Marathi
                              @endif </td>

                        <td>@if($enq->enquired_through == 1)
                               Kisanraja Website  
                              @elseif ($enq->enquired_through == 2)
                               Vinfinet Website
                              @elseif ($enq->enquired_through == 3)
                               Customer Care
                              @elseif ($enq->enquired_through == 4)
                               Toll free number
                              @elseif ($enq->enquired_through == 5)
                               Facebook
                              @elseif ($enq->enquired_through == 6)
                               You Tube
                              @elseif ($enq->enquired_through == 7)
                               Amazon
                              @elseif ($enq->enquired_through == 8)
                               Others 
                              @endif </td>       
                        <td>@if($enq->finished != $enq->quantity-1)<a href="<?php echo 'available/' .$enq->id ?>">Check Stock /</a>
                              @elseif($enq->finished == $enq->quantity-1)<a href="<?php echo 'availablefinal/' .$enq->id ?>">Check Stock /</a>
                              @endif
                        <a href="<?php echo 'passstatus/' .$enq->customer_id ?>">Pending Order</a></td>
                                          

                       
                       <td><a href="<?php echo 'passvalue/' .$enq->customer_id ?>">Edit </a>  /  <a href="main.html"> Delete </a></td>


                        </tr>
                        @endforeach
                        
                      </tbody>
                    </table>
                    </form>

                  </div>
                </div>
              </div>

              




            </div>
          </div>
        </div>
        <!-- /page content -->
        @endsection
        @section('page-script')
<script type="text/javascript">
  $("#btn-mail").change(function () {
    $("input:checkbox").prop('checked', $(this).prop("checked"));
});
</script>

this is my route

Route::get('/sendmail', "CustomerController@mail");

and this is my controller

 public function mail(Request $request)
{
     $data = Input::all();

    foreach($data['checkboxes'] as $id) {
    DB::table('customer')->where('id', $id)->delete();
    }
        return redirect('crews/create');
    }