A number of corners were cut to assume the most usual
way of doing things. Therefore, in many cases,
validns currently does not strictly adhere
to various standards. In particular, it
should be possible (and easy) to construct
a perfectly valid zone file which
will report as problematic. It is expected
that those cases will be all fixed over time.
But if you have a valid zone which
cannot parse, please do report this fact
to the author, with examples. If there is
a need for the community to fix a particular
omission, it will be fixed sooner.
Needless to say, patches are always welcome.