Clients Windows XP,7 connected to OpenLDAP server. Mozilla work fine, Claws Mail can search only by 'emails' field ('cn','sn','displayName' in cyrillic symbols - search not work). After searching by 'email' output data is correct (cyrillic too).
As I do not have access to an Active Directory with entries using cyrillic, I have no way of testing this. Feel free to reopen if you can reproduce this problem using latest release (3.12.0)?