The goal would be to redirect any website with the word domain in it to domainname.nl

RewriteEngine on
RewriteCond %{HTTP_HOST} != www.domainname.nl
RewriteCond %{HTTP_HOST} != domainname.nl
RewriteCond %{HTTP_HOST} = .*domain.*
RewriteRule  . http://www.domainname.nl/sitemanager.asp?pid=22 [R,L]