[Samba] How to get rid of misspelled DNA entry?

[Peter Serbe]

Dear list, 

I have a strange problem. In RSAT is had a typo when 
adding a reverse lookup entry, i.e. I added something 
like "host.samdo.com" instead of "host.samdom.com". 
No a reverse lookup yields to entries, the correct one 
and the misspelled one. :-( 

Deleting it in RSAT is impossible, as the misspelled 
entry doesn't show up here. Deleting in by samba-tool 
is also not possible, as it states erroneously, that 
the entry wasn't existent. 

I experimented a bit: it isn't possible to even add 
an reverse lookup entry with a misspelled domain name. 
But it should be possible to delete that bogus entry 
anyway.

How can I get rid of my "host.samdo.com" entry? 

Thank You in advance! & Best regards
Peter