AIP - Am I missing something with "Recipient Only" label used with "View only" AIP permissions?

Gerry Morley 

Hi, have you looked into Allow or block invitations to B2B users from specific organizations?

https://docs.microsoft.com/en-us/azure/active-directory/b2b/allow-deny-list

1. https://docs.microsoft.com/en-us/azure/active-directory/b2b/allow-deny-listAzure portal.

2. https://docs.microsoft.com/en-us/azure/active-directory/b2b/allow-deny-listAzure Active Directory > Users > User settings.

3. https://docs.microsoft.com/en-us/azure/active-directory/b2b/allow-deny-listExternal users, select Manage external collaboration settings.

4. https://docs.microsoft.com/en-us/azure/active-directory/b2b/allow-deny-listCollaboration restrictions, select Allow invitations only to the specified domains (most restrictive).

5. https://docs.microsoft.com/en-us/azure/active-directory/b2b/allow-deny-listTARGET DOMAINS, enter the name of one of the domains that you want to allow. For multiple domains, enter each domain on a new line.

https://docs.microsoft.com/en-us/azure/active-directory/b2b/allow-deny-list