If you're reading this thread still here is a report:
Got DNS list for 'mixcat.net' from f.gtld-servers.net
Found NS record: ns10.mixcat.com[206.71.183.26], was resolved to IP address by f.gtld-servers.net
Found NS record: ns9.mixcat.com[206.71.183.25], was resolved to IP address by f.gtld-servers.net
Domain has 2 DNS server(s)
Checking HTTP server
www.mixcat.net [206.71.183.25]
HTTP server
www.mixcat.net[206.71.183.25] answers on port 80
Received: HTTP/1.1 301 Moved Permanently (Server: Apache/1.3.39 (Unix) PHP/4.4.4 mod_log_bytes/1.2 mod_bwlimited/1.4 mod_auth_passthrough/1.8 FrontPage/5.0.2.2635 mod_ssl/2.8.30 OpenSSL/0.9.8b) Location:
http://www.mixcat.com/search.php
Your main page redirects to another location. Several search engines will be unable to index your site.
Oh crap looks like they are using your mail server also
Mail server mixcat.net[206.71.183.25] answers on port 25
<<< 220-server1.mixcat.com ESMTP Exim 4.68 #1 Thu, 28 Feb 2008 20:23:56 -0800
>>> HELO
<<< 220-We do not authorize the use of this system to transport unsolicited,
<<< 220 and/or bulk e-mail.
<<<
250 server1.mixcat.com Hello