- Add mdn_request=4

1 files changed, 3 insertions, 3 deletions

diff --git a/program/steps/mail/show.inc b/program/steps/mail/show.inc
index 3b357ac88..328e9d0c7 100644
--- a/program/steps/mail/show.inc
+++ b/program/steps/mail/show.inc
@@ -76,16 +76,16 @@ if ($uid = get_input_value('_uid', RCUBE_INPUT_GET)) {
   {
     $mdn_cfg = intval($CONFIG['mdn_requests']);
 
-    if ($mdn_cfg == 1 || ($mdn_cfg == 3 && rcmail_contact_exists($MESSAGE->sender['mailto']))) {
+    if ($mdn_cfg == 1 || (($mdn_cfg == 3 || $mdn_cfg ==  4) && rcmail_contact_exists($MESSAGE->sender['mailto']))) {
       // Send MDN
       if (rcmail_send_mdn($MESSAGE, $smtp_error))
         $OUTPUT->show_message('receiptsent', 'confirmation');
       else if ($smtp_error)
         $OUTPUT->show_message($smtp_error['label'], 'error', $smtp_error['vars']);
-      else	
+      else
         $OUTPUT->show_message('errorsendingreceipt', 'error');
     }
-    else if ($mdn_cfg != 2) {
+    else if ($mdn_cfg != 2 && $mdn_cfg != 4) {
       // Ask user
       $OUTPUT->add_label('mdnrequest');
       $OUTPUT->set_env('mdn_request', true);