diff --git a/scripts/emailings/mailing-send.php b/scripts/emailings/mailing-send.php
index 6719fb2164f..d4c915c3b72 100755
--- a/scripts/emailings/mailing-send.php
+++ b/scripts/emailings/mailing-send.php
@@ -21,9 +21,9 @@
  */
 
 /**
- * \file scripts/emailings/mailing-send.php
+ * \file 	scripts/emailings/mailing-send.php
  * \ingroup mailing
- * \brief Script d'envoi d'un mailing prepare et valide
+ * \brief 	Script to send a prepared and validated emaling from command line
  */
 
 if (!defined('NOSESSION')) define('NOSESSION', '1');
diff --git a/scripts/emailings/reset-invalid-emails.php b/scripts/emailings/reset-invalid-emails.php
new file mode 100755
index 00000000000..1b27130b8a6
--- /dev/null
+++ b/scripts/emailings/reset-invalid-emails.php
@@ -0,0 +1,96 @@
+#!/usr/bin/env php
+<?php
+/* Copyright (C) 2020 Laurent Destailleur <eldy@users.sourceforge.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ * \file scripts/emailings/reset-invalid-emails.php
+ * \ingroup 	mailing
+ * \brief 		Script to reset (set email to empty) from a list of email
+ */
+
+if (!defined('NOSESSION')) define('NOSESSION', '1');
+
+$sapi_type = php_sapi_name();
+$script_file = basename(__FILE__);
+$path = __DIR__.'/';
+
+// Test if batch mode
+if (substr($sapi_type, 0, 3) == 'cgi') {
+	echo "Error: You are using PHP for CGI. To execute ".$script_file." from command line, you must use PHP for CLI mode.\n";
+	exit(-1);
+}
+
+if (!isset($argv[2]) || !$argv[2]) {
+	print "Usage: ".$script_file." inputfile-with-invalid-emails type\n";
+	print "- inputfile-with-invalid-emails is a file with list of invalid email\n";
+	print "- type can be 'all' or 'thirdparties', 'contacts', 'members', 'users'\n";
+	exit(-1);
+}
+$id = $argv[1];
+$type = $argv[2];
+
+require_once $path."../../htdocs/master.inc.php";
+require_once DOL_DOCUMENT_ROOT."/core/class/CMailFile.class.php";
+require_once DOL_DOCUMENT_ROOT."/comm/mailing/class/mailing.class.php";
+
+// Global variables
+$version = DOL_VERSION;
+$error = 0;
+
+/*
+ * Main
+ */
+
+@set_time_limit(0);
+print "***** ".$script_file." (".$version.") pid=".dol_getmypid()." *****\n";
+
+
+$user = new User($db);
+// for signature, we use user send as parameter
+if (!empty($login))
+	$user->fetch('', $login);
+
+
+$db->begin();
+
+// Loop on the entry file to get the 100 first entries
+
+$groupofemails = array();
+
+
+	// For each groupofemail, we update tables to set email field to empty
+	if (empty($type) || $type == 'thirdparty')
+	{
+		// Loop on each thirdparty and update the email to null if email into $groupofemails
+		// TODO
+	}
+
+	if (empty($type) || $type == 'contact')
+	{
+		// Loop on each thirdparty and update the email to null if email into $groupofemails
+		// TODO
+	}
+
+
+
+if (!$error) {
+	$db->commit();
+} else {
+	$db->rollback();
+}
+
+exit($error);