Move your email to 365 if you’re doing licensing there already. You’ll be able to make shared mailboxes to your hearts content. This may be a minor increase to your existing licensing with Microsoft but probably worth it. You’ll offset the cost by dropping your current hosting provider and maybe even get some more Microsoft features while you’re at it.
I’d recommend not putting any servers on site if you don’t have them already. Especially if you’re already using overdrive and Sharepoint. If you need something like a more traditional file share look into azure files.
Servers mean maintenance, security, availability and life cycle management. You’re in a position where nothing to migrate means going straight cloud. Microsoft can provide everything you need and the cost may seem high but it’s worth not having the on premises headache.
Jedi knight 2 multiplayer remake please!
Holy shit was jk2 multiplayer something else back in the day.