diff --git a/CHANGELOG.md b/CHANGELOG.md
index bcdd0615f..4043b1edf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,11 +23,15 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - ActivityPub C2S: follower/following collection pages being inaccessible even when authentifucated if `hide_followers`/ `hide_follows` was set
 - Existing user id not being preserved on insert conflict
 - Rich Media: Parser failing when no TTL can be found by image TTL setters
+- ActivityPub S2S: sharedInbox usage has been mostly aligned with the rules in the AP specification.
 
 ### Added
 - MRF: Support for priming the mediaproxy cache (`Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy`)
 - MRF: Support for excluding specific domains from Transparency.
 - MRF: Support for filtering posts based on who they mention (`Pleroma.Web.ActivityPub.MRF.MentionPolicy`)
+- MRF (Simple Policy): Support for wildcard domains.
+- Support for wildcard domains in user domain blocks setting.
+- Configuration: `quarantined_instances` support wildcard domains.
 - Configuration: `federation_incoming_replies_max_depth` option
 - Mastodon API: Support for the [`tagged` filter](https://github.com/tootsuite/mastodon/pull/9755) in [`GET /api/v1/accounts/:id/statuses`](https://docs.joinmastodon.org/api/rest/accounts/#get-api-v1-accounts-id-statuses)
 - Mastodon API, streaming: Add support for passing the token in the `Sec-WebSocket-Protocol` header
diff --git a/docs/api/admin_api.md b/docs/api/admin_api.md
index c429da822..5ac3535c4 100644
--- a/docs/api/admin_api.md
+++ b/docs/api/admin_api.md
@@ -564,6 +564,7 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
 
 ## `/api/pleroma/admin/config`
 ### List config settings
+List config settings only works with `:pleroma => :instance => :dynamic_configuration` setting to `true`.
 - Method `GET`
 - Params: none
 - Response:
@@ -582,6 +583,7 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
 
 ## `/api/pleroma/admin/config`
 ### Update config settings
+Updating config settings only works with `:pleroma => :instance => :dynamic_configuration` setting to `true`.
 Module name can be passed as string, which starts with `Pleroma`, e.g. `"Pleroma.Upload"`.
 Atom keys and values can be passed with `:` in the beginning, e.g. `":upload"`.
 Tuples can be passed as `{"tuple": ["first_val", Pleroma.Module, []]}`.
diff --git a/lib/pleroma/signature.ex b/lib/pleroma/signature.ex
index 2a0823ecf..0bf49fd7c 100644
--- a/lib/pleroma/signature.ex
+++ b/lib/pleroma/signature.ex
@@ -10,9 +10,18 @@ defmodule Pleroma.Signature do
   alias Pleroma.Web.ActivityPub.ActivityPub
 
   def key_id_to_actor_id(key_id) do
-    URI.parse(key_id)
-    |> Map.put(:fragment, nil)
-    |> URI.to_string()
+    uri =
+      URI.parse(key_id)
+      |> Map.put(:fragment, nil)
+
+    uri =
+      if String.ends_with?(uri.path, "/publickey") do
+        Map.put(uri, :path, String.replace(uri.path, "/publickey", ""))
+      else
+        uri
+      end
+
+    URI.to_string(uri)
   end
 
   def fetch_public_key(conn) do
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index 5ea2b518b..982ca8bc1 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -586,12 +586,23 @@ def get_followers_query(user, page) do
   @spec get_followers_query(User.t()) :: Ecto.Query.t()
   def get_followers_query(user), do: get_followers_query(user, nil)
 
+  @spec get_followers(User.t(), pos_integer()) :: {:ok, list(User.t())}
   def get_followers(user, page \\ nil) do
     q = get_followers_query(user, page)
 
     {:ok, Repo.all(q)}
   end
 
+  @spec get_external_followers(User.t(), pos_integer()) :: {:ok, list(User.t())}
+  def get_external_followers(user, page \\ nil) do
+    q =
+      user
+      |> get_followers_query(page)
+      |> User.Query.build(%{external: true})
+
+    {:ok, Repo.all(q)}
+  end
+
   def get_followers_ids(user, page \\ nil) do
     q = get_followers_query(user, page)
 
@@ -873,12 +884,17 @@ def muted_notifications?(user, %{ap_id: ap_id}),
 
   def blocks?(%User{info: info} = _user, %{ap_id: ap_id}) do
     blocks = info.blocks
-    domain_blocks = info.domain_blocks
+
+    domain_blocks = Pleroma.Web.ActivityPub.MRF.subdomains_regex(info.domain_blocks)
+
     %{host: host} = URI.parse(ap_id)
 
-    Enum.member?(blocks, ap_id) || Enum.any?(domain_blocks, &(&1 == host))
+    Enum.member?(blocks, ap_id) ||
+      Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, host)
   end
 
+  def blocks?(nil, _), do: false
+
   def subscribed_to?(user, %{ap_id: ap_id}) do
     with %User{} = target <- get_cached_by_ap_id(ap_id) do
       Enum.member?(target.info.subscribers, user.ap_id)
diff --git a/lib/pleroma/web/activity_pub/mrf.ex b/lib/pleroma/web/activity_pub/mrf.ex
index 10ceef715..dd204b21c 100644
--- a/lib/pleroma/web/activity_pub/mrf.ex
+++ b/lib/pleroma/web/activity_pub/mrf.ex
@@ -25,4 +25,14 @@ def get_policies do
   defp get_policies(policy) when is_atom(policy), do: [policy]
   defp get_policies(policies) when is_list(policies), do: policies
   defp get_policies(_), do: []
+
+  @spec subdomains_regex([String.t()]) :: [Regex.t()]
+  def subdomains_regex(domains) when is_list(domains) do
+    for domain <- domains, do: ~r(^#{String.replace(domain, "*.", "(.*\\.)*")}$)
+  end
+
+  @spec subdomain_match?([Regex.t()], String.t()) :: boolean()
+  def subdomain_match?(domains, host) do
+    Enum.any?(domains, fn domain -> Regex.match?(domain, host) end)
+  end
 end
diff --git a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
index 433d23c5f..2cf63d3db 100644
--- a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
@@ -4,22 +4,29 @@
 
 defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
   alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.MRF
   @moduledoc "Filter activities depending on their origin instance"
-  @behaviour Pleroma.Web.ActivityPub.MRF
+  @behaviour MRF
 
   defp check_accept(%{host: actor_host} = _actor_info, object) do
-    accepts = Pleroma.Config.get([:mrf_simple, :accept])
+    accepts =
+      Pleroma.Config.get([:mrf_simple, :accept])
+      |> MRF.subdomains_regex()
 
     cond do
       accepts == [] -> {:ok, object}
       actor_host == Pleroma.Config.get([Pleroma.Web.Endpoint, :url, :host]) -> {:ok, object}
-      Enum.member?(accepts, actor_host) -> {:ok, object}
+      MRF.subdomain_match?(accepts, actor_host) -> {:ok, object}
       true -> {:reject, nil}
     end
   end
 
   defp check_reject(%{host: actor_host} = _actor_info, object) do
-    if Enum.member?(Pleroma.Config.get([:mrf_simple, :reject]), actor_host) do
+    rejects =
+      Pleroma.Config.get([:mrf_simple, :reject])
+      |> MRF.subdomains_regex()
+
+    if MRF.subdomain_match?(rejects, actor_host) do
       {:reject, nil}
     else
       {:ok, object}
@@ -31,8 +38,12 @@ defp check_media_removal(
          %{"type" => "Create", "object" => %{"attachment" => child_attachment}} = object
        )
        when length(child_attachment) > 0 do
+    media_removal =
+      Pleroma.Config.get([:mrf_simple, :media_removal])
+      |> MRF.subdomains_regex()
+
     object =
-      if Enum.member?(Pleroma.Config.get([:mrf_simple, :media_removal]), actor_host) do
+      if MRF.subdomain_match?(media_removal, actor_host) do
         child_object = Map.delete(object["object"], "attachment")
         Map.put(object, "object", child_object)
       else
@@ -51,8 +62,12 @@ defp check_media_nsfw(
            "object" => child_object
          } = object
        ) do
+    media_nsfw =
+      Pleroma.Config.get([:mrf_simple, :media_nsfw])
+      |> MRF.subdomains_regex()
+
     object =
-      if Enum.member?(Pleroma.Config.get([:mrf_simple, :media_nsfw]), actor_host) do
+      if MRF.subdomain_match?(media_nsfw, actor_host) do
         tags = (child_object["tag"] || []) ++ ["nsfw"]
         child_object = Map.put(child_object, "tag", tags)
         child_object = Map.put(child_object, "sensitive", true)
@@ -67,12 +82,12 @@ defp check_media_nsfw(
   defp check_media_nsfw(_actor_info, object), do: {:ok, object}
 
   defp check_ftl_removal(%{host: actor_host} = _actor_info, object) do
+    timeline_removal =
+      Pleroma.Config.get([:mrf_simple, :federated_timeline_removal])
+      |> MRF.subdomains_regex()
+
     object =
-      with true <-
-             Enum.member?(
-               Pleroma.Config.get([:mrf_simple, :federated_timeline_removal]),
-               actor_host
-             ),
+      with true <- MRF.subdomain_match?(timeline_removal, actor_host),
            user <- User.get_cached_by_ap_id(object["actor"]),
            true <- "https://www.w3.org/ns/activitystreams#Public" in object["to"] do
         to =
@@ -94,7 +109,11 @@ defp check_ftl_removal(%{host: actor_host} = _actor_info, object) do
   end
 
   defp check_report_removal(%{host: actor_host} = _actor_info, %{"type" => "Flag"} = object) do
-    if actor_host in Pleroma.Config.get([:mrf_simple, :report_removal]) do
+    report_removal =
+      Pleroma.Config.get([:mrf_simple, :report_removal])
+      |> MRF.subdomains_regex()
+
+    if MRF.subdomain_match?(report_removal, actor_host) do
       {:reject, nil}
     else
       {:ok, object}
@@ -104,7 +123,11 @@ defp check_report_removal(%{host: actor_host} = _actor_info, %{"type" => "Flag"}
   defp check_report_removal(_actor_info, object), do: {:ok, object}
 
   defp check_avatar_removal(%{host: actor_host} = _actor_info, %{"icon" => _icon} = object) do
-    if actor_host in Pleroma.Config.get([:mrf_simple, :avatar_removal]) do
+    avatar_removal =
+      Pleroma.Config.get([:mrf_simple, :avatar_removal])
+      |> MRF.subdomains_regex()
+
+    if MRF.subdomain_match?(avatar_removal, actor_host) do
       {:ok, Map.delete(object, "icon")}
     else
       {:ok, object}
@@ -114,7 +137,11 @@ defp check_avatar_removal(%{host: actor_host} = _actor_info, %{"icon" => _icon}
   defp check_avatar_removal(_actor_info, object), do: {:ok, object}
 
   defp check_banner_removal(%{host: actor_host} = _actor_info, %{"image" => _image} = object) do
-    if actor_host in Pleroma.Config.get([:mrf_simple, :banner_removal]) do
+    banner_removal =
+      Pleroma.Config.get([:mrf_simple, :banner_removal])
+      |> MRF.subdomains_regex()
+
+    if MRF.subdomain_match?(banner_removal, actor_host) do
       {:ok, Map.delete(object, "image")}
     else
       {:ok, object}
diff --git a/lib/pleroma/web/activity_pub/publisher.ex b/lib/pleroma/web/activity_pub/publisher.ex
index c505223f7..016d78216 100644
--- a/lib/pleroma/web/activity_pub/publisher.ex
+++ b/lib/pleroma/web/activity_pub/publisher.ex
@@ -87,18 +87,23 @@ defp should_federate?(inbox, public) do
     if public do
       true
     else
-      inbox_info = URI.parse(inbox)
-      !Enum.member?(Config.get([:instance, :quarantined_instances], []), inbox_info.host)
+      %{host: host} = URI.parse(inbox)
+
+      quarantined_instances =
+        Config.get([:instance, :quarantined_instances], [])
+        |> Pleroma.Web.ActivityPub.MRF.subdomains_regex()
+
+      !Pleroma.Web.ActivityPub.MRF.subdomain_match?(quarantined_instances, host)
     end
   end
 
+  @spec recipients(User.t(), Activity.t()) :: list(User.t()) | []
   defp recipients(actor, activity) do
-    followers =
+    {:ok, followers} =
       if actor.follower_address in activity.recipients do
-        {:ok, followers} = User.get_followers(actor)
-        Enum.filter(followers, &(!&1.local))
+        User.get_external_followers(actor)
       else
-        []
+        {:ok, []}
       end
 
     Pleroma.Web.Salmon.remote_users(actor, activity) ++ followers
@@ -112,6 +117,45 @@ defp get_cc_ap_ids(ap_id, recipients) do
     |> Enum.map(& &1.ap_id)
   end
 
+  @as_public "https://www.w3.org/ns/activitystreams#Public"
+
+  defp maybe_use_sharedinbox(%User{info: %{source_data: data}}),
+    do: (is_map(data["endpoints"]) && Map.get(data["endpoints"], "sharedInbox")) || data["inbox"]
+
+  @doc """
+  Determine a user inbox to use based on heuristics.  These heuristics
+  are based on an approximation of the ``sharedInbox`` rules in the
+  [ActivityPub specification][ap-sharedinbox].
+
+  Please do not edit this function (or its children) without reading
+  the spec, as editing the code is likely to introduce some breakage
+  without some familiarity.
+
+     [ap-sharedinbox]: https://www.w3.org/TR/activitypub/#shared-inbox-delivery
+  """
+  def determine_inbox(
+        %Activity{data: activity_data},
+        %User{info: %{source_data: data}} = user
+      ) do
+    to = activity_data["to"] || []
+    cc = activity_data["cc"] || []
+    type = activity_data["type"]
+
+    cond do
+      type == "Delete" ->
+        maybe_use_sharedinbox(user)
+
+      @as_public in to || @as_public in cc ->
+        maybe_use_sharedinbox(user)
+
+      length(to) + length(cc) > 1 ->
+        maybe_use_sharedinbox(user)
+
+      true ->
+        data["inbox"]
+    end
+  end
+
   @doc """
   Publishes an activity with BCC to all relevant peers.
   """
@@ -166,8 +210,8 @@ def publish(%User{} = actor, %Activity{} = activity) do
 
     recipients(actor, activity)
     |> Enum.filter(fn user -> User.ap_enabled?(user) end)
-    |> Enum.map(fn %{info: %{source_data: data}} ->
-      (is_map(data["endpoints"]) && Map.get(data["endpoints"], "sharedInbox")) || data["inbox"]
+    |> Enum.map(fn %User{} = user ->
+      determine_inbox(activity, user)
     end)
     |> Enum.uniq()
     |> Enum.filter(fn inbox -> should_federate?(inbox, public) end)
diff --git a/lib/pleroma/web/activity_pub/visibility.ex b/lib/pleroma/web/activity_pub/visibility.ex
index 2666edc7c..097fceb08 100644
--- a/lib/pleroma/web/activity_pub/visibility.ex
+++ b/lib/pleroma/web/activity_pub/visibility.ex
@@ -8,14 +8,14 @@ defmodule Pleroma.Web.ActivityPub.Visibility do
   alias Pleroma.Repo
   alias Pleroma.User
 
+  @public "https://www.w3.org/ns/activitystreams#Public"
+
+  @spec is_public?(Object.t() | Activity.t() | map()) :: boolean()
   def is_public?(%Object{data: %{"type" => "Tombstone"}}), do: false
   def is_public?(%Object{data: data}), do: is_public?(data)
   def is_public?(%Activity{data: data}), do: is_public?(data)
   def is_public?(%{"directMessage" => true}), do: false
-
-  def is_public?(data) do
-    "https://www.w3.org/ns/activitystreams#Public" in (data["to"] ++ (data["cc"] || []))
-  end
+  def is_public?(data), do: @public in (data["to"] ++ (data["cc"] || []))
 
   def is_private?(activity) do
     with false <- is_public?(activity),
@@ -69,15 +69,14 @@ def entire_thread_visible_for_user?(%Activity{} = activity, %User{} = user) do
   end
 
   def get_visibility(object) do
-    public = "https://www.w3.org/ns/activitystreams#Public"
     to = object.data["to"] || []
     cc = object.data["cc"] || []
 
     cond do
-      public in to ->
+      @public in to ->
         "public"
 
-      public in cc ->
+      @public in cc ->
         "unlisted"
 
       # this should use the sql for the object's activity
diff --git a/lib/pleroma/web/admin_api/config.ex b/lib/pleroma/web/admin_api/config.ex
index b4eb8e002..dde05ea7b 100644
--- a/lib/pleroma/web/admin_api/config.ex
+++ b/lib/pleroma/web/admin_api/config.ex
@@ -84,6 +84,7 @@ defp do_convert(entity) when is_map(entity) do
   end
 
   defp do_convert({:dispatch, [entity]}), do: %{"tuple" => [":dispatch", [inspect(entity)]]}
+  defp do_convert({:partial_chain, entity}), do: %{"tuple" => [":partial_chain", inspect(entity)]}
 
   defp do_convert(entity) when is_tuple(entity),
     do: %{"tuple" => do_convert(Tuple.to_list(entity))}
@@ -113,11 +114,15 @@ def transform(entity), do: :erlang.term_to_binary(entity)
   defp do_transform(%Regex{} = entity) when is_map(entity), do: entity
 
   defp do_transform(%{"tuple" => [":dispatch", [entity]]}) do
-    cleaned_string = String.replace(entity, ~r/[^\w|^{:,[|^,|^[|^\]^}|^\/|^\.|^"]^\s/, "")
-    {dispatch_settings, []} = Code.eval_string(cleaned_string, [], requires: [], macros: [])
+    {dispatch_settings, []} = do_eval(entity)
     {:dispatch, [dispatch_settings]}
   end
 
+  defp do_transform(%{"tuple" => [":partial_chain", entity]}) do
+    {partial_chain, []} = do_eval(entity)
+    {:partial_chain, partial_chain}
+  end
+
   defp do_transform(%{"tuple" => entity}) do
     Enum.reduce(entity, {}, fn val, acc -> Tuple.append(acc, do_transform(val)) end)
   end
@@ -149,4 +154,9 @@ defp do_transform_string(value) do
       do: String.to_existing_atom("Elixir." <> value),
       else: value
   end
+
+  defp do_eval(entity) do
+    cleaned_string = String.replace(entity, ~r/[^\w|^{:,[|^,|^[|^\]^}|^\/|^\.|^"]^\s/, "")
+    Code.eval_string(cleaned_string, [], requires: [], macros: [])
+  end
 end
diff --git a/lib/pleroma/web/common_api/utils.ex b/lib/pleroma/web/common_api/utils.ex
index fcc000969..94462c3dd 100644
--- a/lib/pleroma/web/common_api/utils.ex
+++ b/lib/pleroma/web/common_api/utils.ex
@@ -439,6 +439,13 @@ def maybe_notify_mentioned_recipients(
 
   def maybe_notify_mentioned_recipients(recipients, _), do: recipients
 
+  # Do not notify subscribers if author is making a reply
+  def maybe_notify_subscribers(recipients, %Activity{
+        object: %Object{data: %{"inReplyTo" => _ap_id}}
+      }) do
+    recipients
+  end
+
   def maybe_notify_subscribers(
         recipients,
         %Activity{data: %{"actor" => actor, "type" => type}} = activity
diff --git a/mix.exs b/mix.exs
index c12b0a500..e69940c5d 100644
--- a/mix.exs
+++ b/mix.exs
@@ -143,7 +143,7 @@ defp deps do
       {:telemetry, "~> 0.3"},
       {:prometheus_ex, "~> 3.0"},
       {:prometheus_plugs, "~> 1.1"},
-      {:prometheus_phoenix, "~> 1.2"},
+      {:prometheus_phoenix, "~> 1.3"},
       {:prometheus_ecto, "~> 1.4"},
       {:recon, github: "ferd/recon", tag: "2.4.0"},
       {:quack, "~> 0.1.1"},
diff --git a/test/notification_test.exs b/test/notification_test.exs
index dda570b49..28f8df49d 100644
--- a/test/notification_test.exs
+++ b/test/notification_test.exs
@@ -42,6 +42,28 @@ test "it creates a notification for subscribed users" do
 
       assert notification.user_id == subscriber.id
     end
+
+    test "does not create a notification for subscribed users if status is a reply" do
+      user = insert(:user)
+      other_user = insert(:user)
+      subscriber = insert(:user)
+
+      User.subscribe(subscriber, other_user)
+
+      {:ok, activity} = CommonAPI.post(user, %{"status" => "test post"})
+
+      {:ok, _reply_activity} =
+        CommonAPI.post(other_user, %{
+          "status" => "test reply",
+          "in_reply_to_status_id" => activity.id
+        })
+
+      user_notifications = Notification.for_user(user)
+      assert length(user_notifications) == 1
+
+      subscriber_notifications = Notification.for_user(subscriber)
+      assert Enum.empty?(subscriber_notifications)
+    end
   end
 
   describe "create_notification" do
diff --git a/test/plugs/authentication_plug_test.exs b/test/plugs/authentication_plug_test.exs
index 7ca045616..f7f8fd9f3 100644
--- a/test/plugs/authentication_plug_test.exs
+++ b/test/plugs/authentication_plug_test.exs
@@ -9,7 +9,6 @@ defmodule Pleroma.Plugs.AuthenticationPlugTest do
   alias Pleroma.User
 
   import ExUnit.CaptureLog
-  import Mock
 
   setup %{conn: conn} do
     user = %User{
@@ -67,13 +66,12 @@ test "check pbkdf2 hash" do
       refute AuthenticationPlug.checkpw("test-password1", hash)
     end
 
+    @tag :skip_on_mac
     test "check sha512-crypt hash" do
       hash =
         "$6$9psBWV8gxkGOZWBz$PmfCycChoxeJ3GgGzwvhlgacb9mUoZ.KUXNCssekER4SJ7bOK53uXrHNb2e4i8yPFgSKyzaW9CcmrDXWIEMtD1"
 
-      with_mock :crypt, crypt: fn _password, password_hash -> password_hash end do
-        assert AuthenticationPlug.checkpw("password", hash)
-      end
+      assert AuthenticationPlug.checkpw("password", hash)
     end
 
     test "it returns false when hash invalid" do
diff --git a/test/plugs/legacy_authentication_plug_test.exs b/test/plugs/legacy_authentication_plug_test.exs
index 02f530058..9804e073b 100644
--- a/test/plugs/legacy_authentication_plug_test.exs
+++ b/test/plugs/legacy_authentication_plug_test.exs
@@ -5,19 +5,18 @@
 defmodule Pleroma.Plugs.LegacyAuthenticationPlugTest do
   use Pleroma.Web.ConnCase
 
+  import Pleroma.Factory
+
   alias Pleroma.Plugs.LegacyAuthenticationPlug
   alias Pleroma.User
 
-  import Mock
-
   setup do
-    # password is "password"
-    user = %User{
-      id: 1,
-      name: "dude",
-      password_hash:
-        "$6$9psBWV8gxkGOZWBz$PmfCycChoxeJ3GgGzwvhlgacb9mUoZ.KUXNCssekER4SJ7bOK53uXrHNb2e4i8yPFgSKyzaW9CcmrDXWIEMtD1"
-    }
+    user =
+      insert(:user,
+        password: "password",
+        password_hash:
+          "$6$9psBWV8gxkGOZWBz$PmfCycChoxeJ3GgGzwvhlgacb9mUoZ.KUXNCssekER4SJ7bOK53uXrHNb2e4i8yPFgSKyzaW9CcmrDXWIEMtD1"
+      )
 
     %{user: user}
   end
@@ -36,6 +35,7 @@ test "it does nothing if a user is assigned", %{conn: conn, user: user} do
     assert ret_conn == conn
   end
 
+  @tag :skip_on_mac
   test "it authenticates the auth_user if present and password is correct and resets the password",
        %{
          conn: conn,
@@ -46,22 +46,12 @@ test "it authenticates the auth_user if present and password is correct and rese
       |> assign(:auth_credentials, %{username: "dude", password: "password"})
       |> assign(:auth_user, user)
 
-    conn =
-      with_mocks([
-        {:crypt, [], [crypt: fn _password, password_hash -> password_hash end]},
-        {User, [],
-         [
-           reset_password: fn user, %{password: password, password_confirmation: password} ->
-             {:ok, user}
-           end
-         ]}
-      ]) do
-        LegacyAuthenticationPlug.call(conn, %{})
-      end
+    conn = LegacyAuthenticationPlug.call(conn, %{})
 
-    assert conn.assigns.user == user
+    assert conn.assigns.user.id == user.id
   end
 
+  @tag :skip_on_mac
   test "it does nothing if the password is wrong", %{
     conn: conn,
     user: user
diff --git a/test/signature_test.exs b/test/signature_test.exs
index 7400cae9a..26337eaf9 100644
--- a/test/signature_test.exs
+++ b/test/signature_test.exs
@@ -48,16 +48,14 @@ test "it returns key" do
 
     test "it returns error when not found user" do
       assert capture_log(fn ->
-               assert Signature.fetch_public_key(make_fake_conn("test-ap_id")) ==
-                        {:error, :error}
+               assert Signature.fetch_public_key(make_fake_conn("test-ap_id")) == {:error, :error}
              end) =~ "[error] Could not decode user"
     end
 
     test "it returns error if public key is empty" do
       user = insert(:user, %{info: %{source_data: %{"publicKey" => %{}}}})
 
-      assert Signature.fetch_public_key(make_fake_conn(user.ap_id)) ==
-               {:error, :error}
+      assert Signature.fetch_public_key(make_fake_conn(user.ap_id)) == {:error, :error}
     end
   end
 
@@ -65,8 +63,7 @@ test "it returns error if public key is empty" do
     test "it returns key" do
       ap_id = "https://mastodon.social/users/lambadalambda"
 
-      assert Signature.refetch_public_key(make_fake_conn(ap_id)) ==
-               {:ok, @rsa_public_key}
+      assert Signature.refetch_public_key(make_fake_conn(ap_id)) == {:ok, @rsa_public_key}
     end
 
     test "it returns error when not found user" do
@@ -105,4 +102,16 @@ test "it returns error" do
              ) == {:error, []}
     end
   end
+
+  describe "key_id_to_actor_id/1" do
+    test "it properly deduces the actor id for misskey" do
+      assert Signature.key_id_to_actor_id("https://example.com/users/1234/publickey") ==
+               "https://example.com/users/1234"
+    end
+
+    test "it properly deduces the actor id for mastodon and pleroma" do
+      assert Signature.key_id_to_actor_id("https://example.com/users/1234#main-key") ==
+               "https://example.com/users/1234"
+    end
+  end
 end
diff --git a/test/support/factory.ex b/test/support/factory.ex
index 531eb81e4..1f4239213 100644
--- a/test/support/factory.ex
+++ b/test/support/factory.ex
@@ -118,17 +118,20 @@ def direct_note_activity_factory do
   def note_activity_factory(attrs \\ %{}) do
     user = attrs[:user] || insert(:user)
     note = attrs[:note] || insert(:note, user: user)
-    attrs = Map.drop(attrs, [:user, :note])
+    data_attrs = attrs[:data_attrs] || %{}
+    attrs = Map.drop(attrs, [:user, :note, :data_attrs])
 
-    data = %{
-      "id" => Pleroma.Web.ActivityPub.Utils.generate_activity_id(),
-      "type" => "Create",
-      "actor" => note.data["actor"],
-      "to" => note.data["to"],
-      "object" => note.data["id"],
-      "published" => DateTime.utc_now() |> DateTime.to_iso8601(),
-      "context" => note.data["context"]
-    }
+    data =
+      %{
+        "id" => Pleroma.Web.ActivityPub.Utils.generate_activity_id(),
+        "type" => "Create",
+        "actor" => note.data["actor"],
+        "to" => note.data["to"],
+        "object" => note.data["id"],
+        "published" => DateTime.utc_now() |> DateTime.to_iso8601(),
+        "context" => note.data["context"]
+      }
+      |> Map.merge(data_attrs)
 
     %Pleroma.Activity{
       data: data,
diff --git a/test/test_helper.exs b/test/test_helper.exs
index 3e33f0335..a927b2c3d 100644
--- a/test/test_helper.exs
+++ b/test/test_helper.exs
@@ -2,7 +2,8 @@
 # Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
-ExUnit.start()
+os_exclude = if :os.type() == {:unix, :darwin}, do: [skip_on_mac: true], else: []
+ExUnit.start(exclude: os_exclude)
 Ecto.Adapters.SQL.Sandbox.mode(Pleroma.Repo, :manual)
 Mox.defmock(Pleroma.ReverseProxy.ClientMock, for: Pleroma.ReverseProxy.Client)
 {:ok, _} = Application.ensure_all_started(:ex_machina)
diff --git a/test/user_test.exs b/test/user_test.exs
index 908f72a0e..8a7b7537f 100644
--- a/test/user_test.exs
+++ b/test/user_test.exs
@@ -824,6 +824,48 @@ test "blocks domains" do
       assert User.blocks?(user, collateral_user)
     end
 
+    test "does not block domain with same end" do
+      user = insert(:user)
+
+      collateral_user =
+        insert(:user, %{ap_id: "https://another-awful-and-rude-instance.com/user/bully"})
+
+      {:ok, user} = User.block_domain(user, "awful-and-rude-instance.com")
+
+      refute User.blocks?(user, collateral_user)
+    end
+
+    test "does not block domain with same end if wildcard added" do
+      user = insert(:user)
+
+      collateral_user =
+        insert(:user, %{ap_id: "https://another-awful-and-rude-instance.com/user/bully"})
+
+      {:ok, user} = User.block_domain(user, "*.awful-and-rude-instance.com")
+
+      refute User.blocks?(user, collateral_user)
+    end
+
+    test "blocks domain with wildcard for subdomain" do
+      user = insert(:user)
+
+      user_from_subdomain =
+        insert(:user, %{ap_id: "https://subdomain.awful-and-rude-instance.com/user/bully"})
+
+      user_with_two_subdomains =
+        insert(:user, %{
+          ap_id: "https://subdomain.second_subdomain.awful-and-rude-instance.com/user/bully"
+        })
+
+      user_domain = insert(:user, %{ap_id: "https://awful-and-rude-instance.com/user/bully"})
+
+      {:ok, user} = User.block_domain(user, "*.awful-and-rude-instance.com")
+
+      assert User.blocks?(user, user_from_subdomain)
+      assert User.blocks?(user, user_with_two_subdomains)
+      assert User.blocks?(user, user_domain)
+    end
+
     test "unblocks domains" do
       user = insert(:user)
       collateral_user = insert(:user, %{ap_id: "https://awful-and-rude-instance.com/user/bully"})
diff --git a/test/web/activity_pub/activity_pub_test.exs b/test/web/activity_pub/activity_pub_test.exs
index 00adbc0f9..1c0b274cb 100644
--- a/test/web/activity_pub/activity_pub_test.exs
+++ b/test/web/activity_pub/activity_pub_test.exs
@@ -6,11 +6,9 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
   use Pleroma.DataCase
   alias Pleroma.Activity
   alias Pleroma.Builders.ActivityBuilder
-  alias Pleroma.Instances
   alias Pleroma.Object
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
-  alias Pleroma.Web.ActivityPub.Publisher
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.CommonAPI
 
@@ -1083,113 +1081,6 @@ test "it can create a Flag activity" do
            } = activity
   end
 
-  describe "publish_one/1" do
-    test_with_mock "calls `Instances.set_reachable` on successful federation if `unreachable_since` is not specified",
-                   Instances,
-                   [:passthrough],
-                   [] do
-      actor = insert(:user)
-      inbox = "http://200.site/users/nick1/inbox"
-
-      assert {:ok, _} = Publisher.publish_one(%{inbox: inbox, json: "{}", actor: actor, id: 1})
-
-      assert called(Instances.set_reachable(inbox))
-    end
-
-    test_with_mock "calls `Instances.set_reachable` on successful federation if `unreachable_since` is set",
-                   Instances,
-                   [:passthrough],
-                   [] do
-      actor = insert(:user)
-      inbox = "http://200.site/users/nick1/inbox"
-
-      assert {:ok, _} =
-               Publisher.publish_one(%{
-                 inbox: inbox,
-                 json: "{}",
-                 actor: actor,
-                 id: 1,
-                 unreachable_since: NaiveDateTime.utc_now()
-               })
-
-      assert called(Instances.set_reachable(inbox))
-    end
-
-    test_with_mock "does NOT call `Instances.set_reachable` on successful federation if `unreachable_since` is nil",
-                   Instances,
-                   [:passthrough],
-                   [] do
-      actor = insert(:user)
-      inbox = "http://200.site/users/nick1/inbox"
-
-      assert {:ok, _} =
-               Publisher.publish_one(%{
-                 inbox: inbox,
-                 json: "{}",
-                 actor: actor,
-                 id: 1,
-                 unreachable_since: nil
-               })
-
-      refute called(Instances.set_reachable(inbox))
-    end
-
-    test_with_mock "calls `Instances.set_unreachable` on target inbox on non-2xx HTTP response code",
-                   Instances,
-                   [:passthrough],
-                   [] do
-      actor = insert(:user)
-      inbox = "http://404.site/users/nick1/inbox"
-
-      assert {:error, _} = Publisher.publish_one(%{inbox: inbox, json: "{}", actor: actor, id: 1})
-
-      assert called(Instances.set_unreachable(inbox))
-    end
-
-    test_with_mock "it calls `Instances.set_unreachable` on target inbox on request error of any kind",
-                   Instances,
-                   [:passthrough],
-                   [] do
-      actor = insert(:user)
-      inbox = "http://connrefused.site/users/nick1/inbox"
-
-      assert {:error, _} = Publisher.publish_one(%{inbox: inbox, json: "{}", actor: actor, id: 1})
-
-      assert called(Instances.set_unreachable(inbox))
-    end
-
-    test_with_mock "does NOT call `Instances.set_unreachable` if target is reachable",
-                   Instances,
-                   [:passthrough],
-                   [] do
-      actor = insert(:user)
-      inbox = "http://200.site/users/nick1/inbox"
-
-      assert {:ok, _} = Publisher.publish_one(%{inbox: inbox, json: "{}", actor: actor, id: 1})
-
-      refute called(Instances.set_unreachable(inbox))
-    end
-
-    test_with_mock "does NOT call `Instances.set_unreachable` if target instance has non-nil `unreachable_since`",
-                   Instances,
-                   [:passthrough],
-                   [] do
-      actor = insert(:user)
-      inbox = "http://connrefused.site/users/nick1/inbox"
-
-      assert {:error, _} =
-               Publisher.publish_one(%{
-                 inbox: inbox,
-                 json: "{}",
-                 actor: actor,
-                 id: 1,
-                 unreachable_since: NaiveDateTime.utc_now()
-               })
-
-      refute called(Instances.set_unreachable(inbox))
-    end
-  end
-
   test "fetch_activities/2 returns activities addressed to a list " do
     user = insert(:user)
     member = insert(:user)
diff --git a/test/web/activity_pub/mrf/mrf_test.exs b/test/web/activity_pub/mrf/mrf_test.exs
new file mode 100644
index 000000000..a9cdf5317
--- /dev/null
+++ b/test/web/activity_pub/mrf/mrf_test.exs
@@ -0,0 +1,46 @@
+defmodule Pleroma.Web.ActivityPub.MRFTest do
+  use ExUnit.Case, async: true
+  alias Pleroma.Web.ActivityPub.MRF
+
+  test "subdomains_regex/1" do
+    assert MRF.subdomains_regex(["unsafe.tld", "*.unsafe.tld"]) == [
+             ~r/^unsafe.tld$/,
+             ~r/^(.*\.)*unsafe.tld$/
+           ]
+  end
+
+  describe "subdomain_match/2" do
+    test "common domains" do
+      regexes = MRF.subdomains_regex(["unsafe.tld", "unsafe2.tld"])
+
+      assert regexes == [~r/^unsafe.tld$/, ~r/^unsafe2.tld$/]
+
+      assert MRF.subdomain_match?(regexes, "unsafe.tld")
+      assert MRF.subdomain_match?(regexes, "unsafe2.tld")
+
+      refute MRF.subdomain_match?(regexes, "example.com")
+    end
+
+    test "wildcard domains with one subdomain" do
+      regexes = MRF.subdomains_regex(["*.unsafe.tld"])
+
+      assert regexes == [~r/^(.*\.)*unsafe.tld$/]
+
+      assert MRF.subdomain_match?(regexes, "unsafe.tld")
+      assert MRF.subdomain_match?(regexes, "sub.unsafe.tld")
+      refute MRF.subdomain_match?(regexes, "anotherunsafe.tld")
+      refute MRF.subdomain_match?(regexes, "unsafe.tldanother")
+    end
+
+    test "wildcard domains with two subdomains" do
+      regexes = MRF.subdomains_regex(["*.unsafe.tld"])
+
+      assert regexes == [~r/^(.*\.)*unsafe.tld$/]
+
+      assert MRF.subdomain_match?(regexes, "unsafe.tld")
+      assert MRF.subdomain_match?(regexes, "sub.sub.unsafe.tld")
+      refute MRF.subdomain_match?(regexes, "sub.anotherunsafe.tld")
+      refute MRF.subdomain_match?(regexes, "sub.unsafe.tldanother")
+    end
+  end
+end
diff --git a/test/web/activity_pub/mrf/simple_policy_test.exs b/test/web/activity_pub/mrf/simple_policy_test.exs
index 0fd68e103..8e86d2219 100644
--- a/test/web/activity_pub/mrf/simple_policy_test.exs
+++ b/test/web/activity_pub/mrf/simple_policy_test.exs
@@ -49,6 +49,19 @@ test "has a matching host" do
 
       assert SimplePolicy.filter(local_message) == {:ok, local_message}
     end
+
+    test "match with wildcard domain" do
+      Config.put([:mrf_simple, :media_removal], ["*.remote.instance"])
+      media_message = build_media_message()
+      local_message = build_local_message()
+
+      assert SimplePolicy.filter(media_message) ==
+               {:ok,
+                media_message
+                |> Map.put("object", Map.delete(media_message["object"], "attachment"))}
+
+      assert SimplePolicy.filter(local_message) == {:ok, local_message}
+    end
   end
 
   describe "when :media_nsfw" do
@@ -74,6 +87,20 @@ test "has a matching host" do
 
       assert SimplePolicy.filter(local_message) == {:ok, local_message}
     end
+
+    test "match with wildcard domain" do
+      Config.put([:mrf_simple, :media_nsfw], ["*.remote.instance"])
+      media_message = build_media_message()
+      local_message = build_local_message()
+
+      assert SimplePolicy.filter(media_message) ==
+               {:ok,
+                media_message
+                |> put_in(["object", "tag"], ["foo", "nsfw"])
+                |> put_in(["object", "sensitive"], true)}
+
+      assert SimplePolicy.filter(local_message) == {:ok, local_message}
+    end
   end
 
   defp build_media_message do
@@ -106,6 +133,15 @@ test "has a matching host" do
       assert SimplePolicy.filter(report_message) == {:reject, nil}
       assert SimplePolicy.filter(local_message) == {:ok, local_message}
     end
+
+    test "match with wildcard domain" do
+      Config.put([:mrf_simple, :report_removal], ["*.remote.instance"])
+      report_message = build_report_message()
+      local_message = build_local_message()
+
+      assert SimplePolicy.filter(report_message) == {:reject, nil}
+      assert SimplePolicy.filter(local_message) == {:ok, local_message}
+    end
   end
 
   defp build_report_message do
@@ -146,6 +182,27 @@ test "has a matching host" do
       assert SimplePolicy.filter(local_message) == {:ok, local_message}
     end
 
+    test "match with wildcard domain" do
+      {actor, ftl_message} = build_ftl_actor_and_message()
+
+      ftl_message_actor_host =
+        ftl_message
+        |> Map.fetch!("actor")
+        |> URI.parse()
+        |> Map.fetch!(:host)
+
+      Config.put([:mrf_simple, :federated_timeline_removal], ["*." <> ftl_message_actor_host])
+      local_message = build_local_message()
+
+      assert {:ok, ftl_message} = SimplePolicy.filter(ftl_message)
+      assert actor.follower_address in ftl_message["to"]
+      refute actor.follower_address in ftl_message["cc"]
+      refute "https://www.w3.org/ns/activitystreams#Public" in ftl_message["to"]
+      assert "https://www.w3.org/ns/activitystreams#Public" in ftl_message["cc"]
+
+      assert SimplePolicy.filter(local_message) == {:ok, local_message}
+    end
+
     test "has a matching host but only as:Public in to" do
       {_actor, ftl_message} = build_ftl_actor_and_message()
 
@@ -192,6 +249,14 @@ test "has a matching host" do
 
       assert SimplePolicy.filter(remote_message) == {:reject, nil}
     end
+
+    test "match with wildcard domain" do
+      Config.put([:mrf_simple, :reject], ["*.remote.instance"])
+
+      remote_message = build_remote_message()
+
+      assert SimplePolicy.filter(remote_message) == {:reject, nil}
+    end
   end
 
   describe "when :accept" do
@@ -224,6 +289,16 @@ test "has a matching host" do
       assert SimplePolicy.filter(local_message) == {:ok, local_message}
       assert SimplePolicy.filter(remote_message) == {:ok, remote_message}
     end
+
+    test "match with wildcard domain" do
+      Config.put([:mrf_simple, :accept], ["*.remote.instance"])
+
+      local_message = build_local_message()
+      remote_message = build_remote_message()
+
+      assert SimplePolicy.filter(local_message) == {:ok, local_message}
+      assert SimplePolicy.filter(remote_message) == {:ok, remote_message}
+    end
   end
 
   describe "when :avatar_removal" do
@@ -251,6 +326,15 @@ test "has a matching host" do
 
       refute filtered["icon"]
     end
+
+    test "match with wildcard domain" do
+      Config.put([:mrf_simple, :avatar_removal], ["*.remote.instance"])
+
+      remote_user = build_remote_user()
+      {:ok, filtered} = SimplePolicy.filter(remote_user)
+
+      refute filtered["icon"]
+    end
   end
 
   describe "when :banner_removal" do
@@ -278,6 +362,15 @@ test "has a matching host" do
 
       refute filtered["image"]
     end
+
+    test "match with wildcard domain" do
+      Config.put([:mrf_simple, :banner_removal], ["*.remote.instance"])
+
+      remote_user = build_remote_user()
+      {:ok, filtered} = SimplePolicy.filter(remote_user)
+
+      refute filtered["image"]
+    end
   end
 
   defp build_local_message do
diff --git a/test/web/activity_pub/publisher_test.exs b/test/web/activity_pub/publisher_test.exs
new file mode 100644
index 000000000..36a39c84c
--- /dev/null
+++ b/test/web/activity_pub/publisher_test.exs
@@ -0,0 +1,266 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.PublisherTest do
+  use Pleroma.DataCase
+
+  import Pleroma.Factory
+  import Tesla.Mock
+  import Mock
+
+  alias Pleroma.Activity
+  alias Pleroma.Instances
+  alias Pleroma.Web.ActivityPub.Publisher
+
+  @as_public "https://www.w3.org/ns/activitystreams#Public"
+
+  setup do
+    mock(fn env -> apply(HttpRequestMock, :request, [env]) end)
+    :ok
+  end
+
+  describe "determine_inbox/2" do
+    test "it returns sharedInbox for messages involving as:Public in to" do
+      user =
+        insert(:user, %{
+          info: %{source_data: %{"endpoints" => %{"sharedInbox" => "http://example.com/inbox"}}}
+        })
+
+      activity = %Activity{
+        data: %{"to" => [@as_public], "cc" => [user.follower_address]}
+      }
+
+      assert Publisher.determine_inbox(activity, user) == "http://example.com/inbox"
+    end
+
+    test "it returns sharedInbox for messages involving as:Public in cc" do
+      user =
+        insert(:user, %{
+          info: %{source_data: %{"endpoints" => %{"sharedInbox" => "http://example.com/inbox"}}}
+        })
+
+      activity = %Activity{
+        data: %{"cc" => [@as_public], "to" => [user.follower_address]}
+      }
+
+      assert Publisher.determine_inbox(activity, user) == "http://example.com/inbox"
+    end
+
+    test "it returns sharedInbox for messages involving multiple recipients in to" do
+      user =
+        insert(:user, %{
+          info: %{source_data: %{"endpoints" => %{"sharedInbox" => "http://example.com/inbox"}}}
+        })
+
+      user_two = insert(:user)
+      user_three = insert(:user)
+
+      activity = %Activity{
+        data: %{"cc" => [], "to" => [user.ap_id, user_two.ap_id, user_three.ap_id]}
+      }
+
+      assert Publisher.determine_inbox(activity, user) == "http://example.com/inbox"
+    end
+
+    test "it returns sharedInbox for messages involving multiple recipients in cc" do
+      user =
+        insert(:user, %{
+          info: %{source_data: %{"endpoints" => %{"sharedInbox" => "http://example.com/inbox"}}}
+        })
+
+      user_two = insert(:user)
+      user_three = insert(:user)
+
+      activity = %Activity{
+        data: %{"to" => [], "cc" => [user.ap_id, user_two.ap_id, user_three.ap_id]}
+      }
+
+      assert Publisher.determine_inbox(activity, user) == "http://example.com/inbox"
+    end
+
+    test "it returns sharedInbox for messages involving multiple recipients in total" do
+      user =
+        insert(:user, %{
+          info: %{
+            source_data: %{
+              "inbox" => "http://example.com/personal-inbox",
+              "endpoints" => %{"sharedInbox" => "http://example.com/inbox"}
+            }
+          }
+        })
+
+      user_two = insert(:user)
+
+      activity = %Activity{
+        data: %{"to" => [user_two.ap_id], "cc" => [user.ap_id]}
+      }
+
+      assert Publisher.determine_inbox(activity, user) == "http://example.com/inbox"
+    end
+
+    test "it returns inbox for messages involving single recipients in total" do
+      user =
+        insert(:user, %{
+          info: %{
+            source_data: %{
+              "inbox" => "http://example.com/personal-inbox",
+              "endpoints" => %{"sharedInbox" => "http://example.com/inbox"}
+            }
+          }
+        })
+
+      activity = %Activity{
+        data: %{"to" => [user.ap_id], "cc" => []}
+      }
+
+      assert Publisher.determine_inbox(activity, user) == "http://example.com/personal-inbox"
+    end
+  end
+
+  describe "publish_one/1" do
+    test_with_mock "calls `Instances.set_reachable` on successful federation if `unreachable_since` is not specified",
+                   Instances,
+                   [:passthrough],
+                   [] do
+      actor = insert(:user)
+      inbox = "http://200.site/users/nick1/inbox"
+
+      assert {:ok, _} = Publisher.publish_one(%{inbox: inbox, json: "{}", actor: actor, id: 1})
+
+      assert called(Instances.set_reachable(inbox))
+    end
+
+    test_with_mock "calls `Instances.set_reachable` on successful federation if `unreachable_since` is set",
+                   Instances,
+                   [:passthrough],
+                   [] do
+      actor = insert(:user)
+      inbox = "http://200.site/users/nick1/inbox"
+
+      assert {:ok, _} =
+               Publisher.publish_one(%{
+                 inbox: inbox,
+                 json: "{}",
+                 actor: actor,
+                 id: 1,
+                 unreachable_since: NaiveDateTime.utc_now()
+               })
+
+      assert called(Instances.set_reachable(inbox))
+    end
+
+    test_with_mock "does NOT call `Instances.set_reachable` on successful federation if `unreachable_since` is nil",
+                   Instances,
+                   [:passthrough],
+                   [] do
+      actor = insert(:user)
+      inbox = "http://200.site/users/nick1/inbox"
+
+      assert {:ok, _} =
+               Publisher.publish_one(%{
+                 inbox: inbox,
+                 json: "{}",
+                 actor: actor,
+                 id: 1,
+                 unreachable_since: nil
+               })
+
+      refute called(Instances.set_reachable(inbox))
+    end
+
+    test_with_mock "calls `Instances.set_unreachable` on target inbox on non-2xx HTTP response code",
+                   Instances,
+                   [:passthrough],
+                   [] do
+      actor = insert(:user)
+      inbox = "http://404.site/users/nick1/inbox"
+
+      assert {:error, _} = Publisher.publish_one(%{inbox: inbox, json: "{}", actor: actor, id: 1})
+
+      assert called(Instances.set_unreachable(inbox))
+    end
+
+    test_with_mock "it calls `Instances.set_unreachable` on target inbox on request error of any kind",
+                   Instances,
+                   [:passthrough],
+                   [] do
+      actor = insert(:user)
+      inbox = "http://connrefused.site/users/nick1/inbox"
+
+      assert {:error, _} = Publisher.publish_one(%{inbox: inbox, json: "{}", actor: actor, id: 1})
+
+      assert called(Instances.set_unreachable(inbox))
+    end
+
+    test_with_mock "does NOT call `Instances.set_unreachable` if target is reachable",
+                   Instances,
+                   [:passthrough],
+                   [] do
+      actor = insert(:user)
+      inbox = "http://200.site/users/nick1/inbox"
+
+      assert {:ok, _} = Publisher.publish_one(%{inbox: inbox, json: "{}", actor: actor, id: 1})
+
+      refute called(Instances.set_unreachable(inbox))
+    end
+
+    test_with_mock "does NOT call `Instances.set_unreachable` if target instance has non-nil `unreachable_since`",
+                   Instances,
+                   [:passthrough],
+                   [] do
+      actor = insert(:user)
+      inbox = "http://connrefused.site/users/nick1/inbox"
+
+      assert {:error, _} =
+               Publisher.publish_one(%{
+                 inbox: inbox,
+                 json: "{}",
+                 actor: actor,
+                 id: 1,
+                 unreachable_since: NaiveDateTime.utc_now()
+               })
+
+      refute called(Instances.set_unreachable(inbox))
+    end
+  end
+
+  describe "publish/2" do
+    test_with_mock "publishes an activity with BCC to all relevant peers.",
+                   Pleroma.Web.Federator.Publisher,
+                   [:passthrough],
+                   [] do
+      follower =
+        insert(:user,
+          local: false,
+          info: %{
+            ap_enabled: true,
+            source_data: %{"inbox" => "https://domain.com/users/nick1/inbox"}
+          }
+        )
+
+      actor = insert(:user, follower_address: follower.ap_id)
+      user = insert(:user)
+
+      {:ok, _follower_one} = Pleroma.User.follow(follower, actor)
+      actor = refresh_record(actor)
+
+      note_activity =
+        insert(:note_activity,
+          recipients: [follower.ap_id],
+          data_attrs: %{"bcc" => [user.ap_id]}
+        )
+
+      res = Publisher.publish(actor, note_activity)
+      assert res == :ok
+
+      assert called(
+               Pleroma.Web.Federator.Publisher.enqueue_one(Publisher, %{
+                 inbox: "https://domain.com/users/nick1/inbox",
+                 actor: actor,
+                 id: note_activity.data["id"]
+               })
+             )
+    end
+  end
+end
diff --git a/test/web/admin_api/admin_api_controller_test.exs b/test/web/admin_api/admin_api_controller_test.exs
index 03aa46cae..1306c341d 100644
--- a/test/web/admin_api/admin_api_controller_test.exs
+++ b/test/web/admin_api/admin_api_controller_test.exs
@@ -1571,7 +1571,8 @@ test "common config example", %{conn: conn} do
                 %{"tuple" => [":method", "Pleroma.Captcha.Kocaptcha"]},
                 %{"tuple" => [":seconds_valid", 60]},
                 %{"tuple" => [":path", ""]},
-                %{"tuple" => [":key1", nil]}
+                %{"tuple" => [":key1", nil]},
+                %{"tuple" => [":partial_chain", "&:hackney_connect.partial_chain/1"]}
               ]
             }
           ]
@@ -1587,7 +1588,8 @@ test "common config example", %{conn: conn} do
                      %{"tuple" => [":method", "Pleroma.Captcha.Kocaptcha"]},
                      %{"tuple" => [":seconds_valid", 60]},
                      %{"tuple" => [":path", ""]},
-                     %{"tuple" => [":key1", nil]}
+                     %{"tuple" => [":key1", nil]},
+                     %{"tuple" => [":partial_chain", "&:hackney_connect.partial_chain/1"]}
                    ]
                  }
                ]
diff --git a/test/web/admin_api/config_test.exs b/test/web/admin_api/config_test.exs
index d41666ef3..3190dc1c8 100644
--- a/test/web/admin_api/config_test.exs
+++ b/test/web/admin_api/config_test.exs
@@ -238,6 +238,14 @@ test "simple keyword" do
       assert Config.from_binary(binary) == [key: "value"]
     end
 
+    test "keyword with partial_chain key" do
+      binary =
+        Config.transform([%{"tuple" => [":partial_chain", "&:hackney_connect.partial_chain/1"]}])
+
+      assert binary == :erlang.term_to_binary(partial_chain: &:hackney_connect.partial_chain/1)
+      assert Config.from_binary(binary) == [partial_chain: &:hackney_connect.partial_chain/1]
+    end
+
     test "keyword" do
       binary =
         Config.transform([
diff --git a/test/web/federator_test.exs b/test/web/federator_test.exs
index 69dd4d747..6e143eee4 100644
--- a/test/web/federator_test.exs
+++ b/test/web/federator_test.exs
@@ -22,6 +22,15 @@ defmodule Pleroma.Web.FederatorTest do
     :ok
   end
 
+  describe "Publisher.perform" do
+    test "call `perform` with unknown task" do
+      assert {
+               :error,
+               "Don't know what to do with this"
+             } = Pleroma.Web.Federator.Publisher.perform("test", :ok, :ok)
+    end
+  end
+
   describe "Publish an activity" do
     setup do
       user = insert(:user)
diff --git a/test/web/mastodon_api/mastodon_api_controller_test.exs b/test/web/mastodon_api/mastodon_api_controller_test.exs
index a3e4c4136..bc3213e0c 100644
--- a/test/web/mastodon_api/mastodon_api_controller_test.exs
+++ b/test/web/mastodon_api/mastodon_api_controller_test.exs
@@ -3786,6 +3786,20 @@ test "does not return users who have favorited the status but are blocked", %{
 
       assert Enum.empty?(response)
     end
+
+    test "does not fail on an unauthenticated request", %{conn: conn, activity: activity} do
+      other_user = insert(:user)
+      {:ok, _, _} = CommonAPI.favorite(activity.id, other_user)
+
+      response =
+        conn
+        |> assign(:user, nil)
+        |> get("/api/v1/statuses/#{activity.id}/favourited_by")
+        |> json_response(:ok)
+
+      [%{"id" => id}] = response
+      assert id == other_user.id
+    end
   end
 
   describe "GET /api/v1/statuses/:id/reblogged_by" do
@@ -3843,6 +3857,20 @@ test "does not return users who have reblogged the status but are blocked", %{
 
       assert Enum.empty?(response)
     end
+
+    test "does not fail on an unauthenticated request", %{conn: conn, activity: activity} do
+      other_user = insert(:user)
+      {:ok, _, _} = CommonAPI.repeat(activity.id, other_user)
+
+      response =
+        conn
+        |> assign(:user, nil)
+        |> get("/api/v1/statuses/#{activity.id}/reblogged_by")
+        |> json_response(:ok)
+
+      [%{"id" => id}] = response
+      assert id == other_user.id
+    end
   end
 
   describe "POST /auth/password, with valid parameters" do