A customer wants to register 12 new domainnames with us and have them all forwarded to 1 existing domain.

If his domain registrar does not give him the option of url forwarding, what other options do we have?

We run our own dns on the raq. Is there any way I can have do the url forwarding on the raq side?

If main site is on a dedicated IP, you can point the other sites to that IP, or if this is a RaQ4, you can set up web aliases in the control panel (site settings).

for a raq4 use the site settings in the control panel, if its a raq2/3 then you will have to manually put the domain names in the /etc/httpd/conf/httpd.conf file. do a search for the actual domain name and then add all 12 domain names with and without the www as a server alias (24 total), then restart your web server
/etc/rc.d/init.d/httpd restart
that should do it assuming they have your DNS entries on all domain names.