Beginner question about initial config.

[Jotunn]

When installing ProxMox VE I was prompted to enter an email address.
I used a fake one?
Am I going to regret that? If so, I want to find out sooner than later so reinstalling isn't as much of a setback.

 

[leesteken]

You can change it later (see user management) and you'll see errors in the systems logs when your Proxmox host tries to get your attention via e-mails about problems or updates.
I don't think the e-mail address is used or send anywhere except your local Proxmox host configuration to send e-mail that are intended for the root user.