$msg['guid'] = Item::guidFromUri($msg['uri'], $host);
}
+ $msg['created'] = (!empty($msg['created']) ? DateTimeFormat::utc($msg['created']) : DateTimeFormat::utcNow());
+
DBA::lock('mail');
if (DBA::exists('mail', ['uri' => $msg['uri'], 'uid' => $msg['uid']])) {