core(backend): output the sent message uid and its imap server id when it has successfully saved (#1521)

Author: mercihabam

modules/imap/handler_modules.php

@@ -333,8 +333,13 @@ public function process() {
         $mailbox = Hm_IMAP_List::get_connected_mailbox($imap_id, $this->cache);
         if ($mailbox && $mailbox->authed()) {
             $uid = save_sent_msg($this, $imap_id, $mailbox, $imap_details, $msg, $mime->get_headers()['Message-Id']);
-            if ($uid && $this->user_config->get('review_sent_email_setting', false)) {
-                $this->out('redirect_url', '?page=message&uid='.$uid.'&list_path=imap_'.$imap_id.'_'.bin2hex($sent_folder));
+            if ($uid) {
+                $this->out('sent_msg_uid', $uid);
+                $this->out('sent_imap_id', $imap_id);
+
+                if ($this->user_config->get('review_sent_email_setting', false)) {
+                    $this->out('redirect_url', '?page=message&uid='.$uid.'&list_path=imap_'.$imap_id.'_'.bin2hex($sent_folder));
+                }
             }
         }
     }