Ssl certificate for one mapped domain on network

Hello

I have set up a multi site network with about 6 subsites and all of them will be mapped with a different domain.

For one of the domains my customer has a ssl certificate which is currently used on the old server of another provider than the new site is on.

Is it possible to map this https:// domain to the network just as I do with normal domains? Or what do I have to do?