With regards to external collaboration, one can either enable external collaboration with any external domain (for both inbound and outbound collaboration), or one can specify an allow list of external domains for both inbound and outbound collaboration. We have different requirements with regards to inbound and outbound collaboration.

As such, we would like fine-grained control over both inbound and outbound collaboration domains. We may want a block list of inbound collaboration while having an allow list for outbound collaboration (or vice versa.)

Definitions:
Inbound collaboration: an collaboration invite from one's own Box tenant to an external, unmanaged account
Outbound collaboration: an collaboration invite from an external, unmanaged Box account/tenant to a managed user in one's own tenant