diff --git a/src/errors.rs b/src/errors.rs
index da309d2..ff1a473 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -36,6 +36,10 @@ impl UpubError {
 		Self::Status(axum::http::StatusCode::FORBIDDEN)
 	}
 
+	pub fn unauthorized() -> Self {
+		Self::Status(axum::http::StatusCode::UNAUTHORIZED)
+	}
+
 	pub fn not_modified() -> Self {
 		Self::Status(axum::http::StatusCode::NOT_MODIFIED)
 	}
diff --git a/src/routes/activitypub/inbox.rs b/src/routes/activitypub/inbox.rs
index e5b9ae2..d2fe203 100644
--- a/src/routes/activitypub/inbox.rs
+++ b/src/routes/activitypub/inbox.rs
@@ -1,8 +1,8 @@
-use apb::{server::Inbox, ActivityType, Base, BaseType, ObjectType};
+use apb::{server::Inbox, target::Addressed, Activity, ActivityType, Base, BaseType, ObjectType};
 use axum::{extract::{Query, State}, http::StatusCode, Json};
 use sea_orm::{Order, QueryFilter, QueryOrder, QuerySelect};
 
-use crate::{errors::UpubError, model::{self, addressing::EmbeddedActivity}, server::{auth::AuthIdentity, Context}, url};
+use crate::{errors::UpubError, model::{self, addressing::EmbeddedActivity}, server::{auth::{AuthIdentity, Identity}, Context}, url};
 
 use super::{jsonld::LD, JsonLD, Pagination};
 
@@ -40,10 +40,18 @@ pub async fn page(
 	))
 }
 
+
+
 pub async fn post(
 	State(ctx): State<Context>,
+	AuthIdentity(auth): AuthIdentity,
 	Json(activity): Json<serde_json::Value>
-) -> Result<(), UpubError> {
+) -> crate::Result<()> {
+	match auth {
+		Identity::Remote(_server) => {},
+		Identity::Local(_user) => return Err(UpubError::forbidden()),
+		Identity::Anonymous => return Err(UpubError::unauthorized()),
+	}
 	match activity.base_type() {
 		None => { Err(StatusCode::BAD_REQUEST.into()) },
 
diff --git a/src/routes/activitypub/user/inbox.rs b/src/routes/activitypub/user/inbox.rs
index ed36bd6..0ad4b04 100644
--- a/src/routes/activitypub/user/inbox.rs
+++ b/src/routes/activitypub/user/inbox.rs
@@ -57,8 +57,9 @@ pub async fn page(
 pub async fn post(
 	State(ctx): State<Context>,
 	Path(_id): Path<String>,
-	Json(activity): Json<serde_json::Value>
+	AuthIdentity(_auth): AuthIdentity,
+	Json(activity): Json<serde_json::Value>,
 ) -> Result<(), UpubError> {
 	// POSTing to user inboxes is effectively the same as POSTing to the main inbox
-	super::super::inbox::post(State(ctx), Json(activity)).await
+	super::super::inbox::post(State(ctx), AuthIdentity(_auth), Json(activity)).await
 }
diff --git a/src/server/fetcher.rs b/src/server/fetcher.rs
index 67deb4c..fb57ed6 100644
--- a/src/server/fetcher.rs
+++ b/src/server/fetcher.rs
@@ -11,18 +11,6 @@ use crate::{VERSION, model};
 use super::Context;
 
 
-#[derive(Debug, thiserror::Error)]
-pub enum FetchError {
-	#[error("could not dereference resource: {0}")]
-	Network(#[from] reqwest::Error),
-
-	#[error("error operating on database: {0}")]
-	Database(#[from] sea_orm::DbErr),
-
-	#[error("missing field when constructing object: {0}")]
-	Field(#[from] model::FieldError),
-}
-
 pub struct Fetcher {
 	db: DatabaseConnection,
 	key: PKey<Private>, // TODO store pre-parsed
@@ -94,7 +82,7 @@ impl Fetcher {
 			.await
 	}
 
-	pub async fn user(&self, id: &str) -> Result<model::user::Model, FetchError> {
+	pub async fn user(&self, id: &str) -> crate::Result<model::user::Model> {
 		if let Some(x) = model::user::Entity::find_by_id(id).one(&self.db).await? {
 			return Ok(x); // already in db, easy
 		}
@@ -110,7 +98,7 @@ impl Fetcher {
 		Ok(user_model)
 	}
 
-	pub async fn activity(&self, id: &str) -> Result<model::activity::Model, FetchError> {
+	pub async fn activity(&self, id: &str) -> crate::Result<model::activity::Model> {
 		if let Some(x) = model::activity::Entity::find_by_id(id).one(&self.db).await? {
 			return Ok(x); // already in db, easy
 		}
@@ -126,7 +114,7 @@ impl Fetcher {
 		Ok(activity_model)
 	}
 
-	pub async fn object(&self, id: &str) -> Result<model::object::Model, FetchError> {
+	pub async fn object(&self, id: &str) -> crate::Result<model::object::Model> {
 		if let Some(x) = model::object::Entity::find_by_id(id).one(&self.db).await? {
 			return Ok(x); // already in db, easy
 		}