A trailing dash in a domain name makes validator fail?

Hi!
It appears that validator fails to validate any URL that has a trailing "-" in a part of the domain name. For example, I tried to validate http://clan-xz-.hotbox.ru and it failed. The site definitely exists at that address, but the validator reports "Bad Hostname".. I've also tried other URLs with a trailing dash and had the same effect. Replacing "-" with "%2D" doesn't help.
What could be the problem with that?
Thanks

Received on Wednesday, 18 July 2001 11:49:30 UTC