htaccess no redirect 301

Hi I have a problem with redirection. to put this in my htaccess

RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.newdomain\.com
RewriteRule (.*) http://www.newdomain.com/$1 [R=301,L]
RewriteRule ^index\.php$ / [R=301,L]

but if I type in the url

www.newdomain.com.br no to www.newdomain.com

does not redirect

but if you redirect non-www

newdomain.com.br yes to www.newdomain.com

Excuse my English

(move general discusion)

Have you parked newdomain.com.br on newdomain.com ? If you have just re-directed it, you will need to adjust your redirect.