Invites to Zoom meetings

Dear Community,

I am a registered user of Zoom.  I would like to invite people to a scheduled, Zoom meeting. 

Could you tell me how I could do that, please? 

Additionally, one of the people who I want to invite has a strange e-mail address, with a domain name I haven't heard of before.  How do I invite them, please? 

Would be very grateful for any constructive answers,

MAREK2