How can i put multiple same domain contacts under single mail companie bcoz they are from same company

m looking for a feature that put several same domain mail IDs (normally different IDs from same compay so multiple ids should be in copy) under single mail campaign instead of send mail to each of mail IDs separately . thats preety weird…

I belive technically its very easy to achive such feature but i just simply cant find the way in brevo to meet my demands , can anyone guild me , thanks a ton !