Restricted Categories for emails receiving any mail

[Moin]

Why do you want to use a category? Maybe a group inbox would better fit your needs
I think you could try something similar to what the @team does.

@HAWK

Support Ticketing

We also use Discourse as a private email support portal which allows our entire team to share the support load. Anyone can email team@discourse.org and we handle those interactions in a central discourse mailbox, as private group messages.

Staged user accounts are set up, allowing us to store contact history against an individual. More details on how that works here.