*
* @return string
*/
- public function formatUnrecognisedPart($part) {
+ public static function formatUnrecognisedPart($part) {
CRM_Core_Error::debug_log_message(ts('CRM_Utils_Mail_Incoming: Unable to handle message part of type "%1".', [1 => get_class($part)]));
return ts('Unrecognised message part of type "%1".', [1 => get_class($part)]);
}