ZoneCheck is intended to help solving misconfigurations or inconsistencies 
of DNS zone files. 
Features

    * Powerful configuration file 
    * Does not depend on policies
    * Fine grained test selection (by test, by categories, by zones)
    * Full IPv6 support (connectivity and AAAA records)
    * Supports several input/output interfaces such as CLI, CGI, GUI
    * Dedicated mode for use inside shell scripts
    * Batch mode available (ideal when dealing with several domains)
    * Multi-threaded application in order to cut down checking time
    * Extensible: new tests, new interfaces, new reports, ...
    * Exception and cache mechanisms to simplify test writting

WWW: http://www.zonecheck.fr/