Question to fancy-mail split

[Josef Oswald]

How can I set  gnus so up that it move e-mails from a certain domain
into one folder? 

like gnus@chello.at goes to group nnml+private:other, I would like that
_all_ e-mails coming from @chello.at address goes into the same group. 

I looked into fancy mail-splitting but it seems I need to know the
complete e-mail address to set up the split rules. 

Thanks for any pointers :-) 
 
Josef Oswald also -> gnus@chello.at  :-) 
--  
Gnus gives you all the opportunity you could possibly want for
shooting yourself in the foot. 
--from the INFO --