bleu cheese smell from wine?

[jattea]

I am just starting to really get into wine. I'm learning appellations,
varietals, lingo... I'm starting to be able to discern different flavors,
etc..

yesterday at a restaraunt I ordered a South African pinotage, a varietal I
wasn't previously aware of. when i tasted it, I noticed the distict smell
of roquefort cheese, but other than that, the wine tasted fine. As I had
more, I worried that the wine might be bad, and that the smell was fungus or
bacteria.

What was that smell? Is it a common scent for wines of this varietal?
Should I have sent it back?