How to validate pages of a website with national characters in domain name

• From: Raija Ylonen <raija.ylonen@kotiportti.fi>
• Date: Tue, 17 Jun 2008 16:53:24 +0300
• To: www-validator@w3.org
• Message-ID: <4857C1D4.60209@kotiportti.fi>

Please advise how to validate this website with national characters in 
the domain name:

www.ylöjärventaideyhdistys.fi
When I try to validate it, I get error messages.

Raija Ylönen,
my email is: raija.ylonen@jippii.fi

Received on Wednesday, 18 June 2008 14:55:52 UTC