3DP domain forwarded to Plesk opens local domain

[[email protected]]

Hello.
I need that my other servers have a NS record like:

feedback.3dp-domain1.com A IP.to.server.with.PLESK
feedback.3dp-domain2.com A IP.to.server.with.PLESK
feedback.3dp-domain3.com A IP.to.server.with.PLESK

or

feedback.3dp-domain1.com CNAME maindomain.com
feedback.3dp-domain2.com CNAME maindomain.com
feedback.3dp-domain3.com CNAME maindomain.com

that request will be executed and page opened from

maindomain.com (/var/www/vhosts/maindomain.com/httpdocs/)

Though at browser address bar feedback.3dp-domain.com must be kept.

I ready to edit any files at PLESK and add requried DNS setting at PLESK configuration. It will be better if I don't need to create domain at PLESK for each 3DP domain which forwarded to PLESK server. Just vhost.conf custom records.

Thanks.