adns-python return codes

[Josh Close]

Does anyone know what the return codes for an mx adns python lookup
are? I know 0 means a valid domain, and anything else isn't, but there
are "no nameservers found" and "timeout" and other things that would
have to be retried again.

I looked through the source and didn't find anything, and looked
through the gnu adns C source and didn't find anything, but I really
don't know C at all, so I could have missed something.

Thanks.

-Josh