Revisit SharePoint external collaboration options

[adhilto]

Prerequisites

• This issue has an informative and human-readable title.

💡 Summary

For MS.SHAREPOINT.1.1 and 1.2, assess if domains/tenants can or should be allowed to be allowlisted via Entra ID external collaboration settings to share files with directly to users of the allowlisted tenants/domains.

Motivation and context

To ensure that SharePoint external options are safely configured while still allowing legitimate use cases.

Implementation notes

See how external collaboration impact those settings and if adjustments need to be made with those policies.

See https://learn.microsoft.com/en-us/entra/external-id/what-is-b2b.

Acceptance criteria

• Do background research, determine if a baseline change is needed
• If applicable, open follow up issues to implement any needed changes

[tkol2022]

#1272