Origin servers sending publicly addressed activities to sharedInbox endpoints MUST still deliver to actors and collections otherwise addressed (through to, bto, cc, bcc, and audience) which do not have a sharedInbox and would not otherwise receive the activity through the sharedInbox mechanism.

{
  "id": "urn:uuid:08ed852d-f36c-47ba-992b-b211e35dbdca",
  "uuid": "08ed852d-f36c-47ba-992b-b211e35dbdca",
  "type": "Behavior",
  "content": "Origin servers sending publicly addressed activities to sharedInbox endpoints MUST still deliver to actors and collections otherwise addressed (through to, bto, cc, bcc, and audience) which do not have a sharedInbox and would not otherwise receive the activity through the sharedInbox mechanism.\n",
  "tag": [
    {
      "name": "ActivityPubServer",
      "id": "https://socialweb.coop/tag/ActivityPubServer"
    }
  ],
  "context": [
    "https://www.w3.org/TR/activitypub/",
    {
      "name": "7. Server to Server Interactions",
      "id": "https://www.w3.org/TR/activitypub/#server-to-server-interactions"
    },
    {
      "name": "7.1 Delivery",
      "id": "https://www.w3.org/TR/activitypub/#delivery"
    },
    {
      "name": "7.1.3 Shared Inbox Delivery",
      "id": "https://www.w3.org/TR/activitypub/#shared-inbox-delivery"
    }
  ],
  "origin": {
    "source": "https://www.w3.org/TR/activitypub/",
    "section": {
      "id": "https://www.w3.org/TR/activitypub/#shared-inbox-delivery",
      "branch": [
        7,
        1,
        3
      ]
    },
    "selector": {
      "prefix": "Additionally, if an object is addressed to the Public special collection, a server MAY deliver that object to all known sharedInbox endpoints on the network.\n",
      "exact": "Origin servers sending publicly addressed activities to sharedInbox endpoints MUST still deliver to actors and collections otherwise addressed (through to, bto, cc, bcc, and audience) which do not have a sharedInbox and would not otherwise receive the activity through the sharedInbox mechanism.\n",
      "suffix": "7.2 Create Activity\n"
    }
  },
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    "https://socialweb.coop/ns/testing/context.json"
  ]
}