diff --git a/src/models/entities/note.ts b/src/models/entities/note.ts
index 5e8397819..253d157b8 100644
--- a/src/models/entities/note.ts
+++ b/src/models/entities/note.ts
@@ -195,12 +195,6 @@ export class Note {
 	})
 	public userHost: string | null;
 
-	@Column('varchar', {
-		length: 128, nullable: true,
-		comment: '[Denormalized]'
-	})
-	public userInbox: string | null;
-
 	@Column({
 		...id(),
 		nullable: true,
diff --git a/src/services/note/create.ts b/src/services/note/create.ts
index bc1225cd4..9f79bf7a6 100644
--- a/src/services/note/create.ts
+++ b/src/services/note/create.ts
@@ -329,12 +329,16 @@ async function publish(user: User, note: Note, reply: Note, renote: Note, noteAc
 	if (Users.isLocalUser(user)) {
 		// 投稿がリプライかつ投稿者がローカルユーザーかつリプライ先の投稿の投稿者がリモートユーザーなら配送
 		if (reply && reply.userHost !== null) {
-			deliver(user, noteActivity, reply.userInbox);
+			Users.findOne(reply.userId).then(u => {
+				deliver(user, noteActivity, u.inbox);
+			});
 		}
 
 		// 投稿がRenoteかつ投稿者がローカルユーザーかつRenote元の投稿の投稿者がリモートユーザーなら配送
 		if (renote && renote.userHost !== null) {
-			deliver(user, noteActivity, renote.userInbox);
+			Users.findOne(renote.userId).then(u => {
+				deliver(user, noteActivity, u.inbox);
+			});
 		}
 	}
 
@@ -377,7 +381,6 @@ async function insertNote(user: User, data: Option, tags: string[], emojis: stri
 		renoteUserId: data.renote ? data.renote.userId : null,
 		renoteUserHost: data.renote ? data.renote.userHost : null,
 		userHost: user.host,
-		userInbox: user.inbox,
 	};
 
 	if (data.uri != null) insert.uri = data.uri;
diff --git a/src/services/note/reaction/create.ts b/src/services/note/reaction/create.ts
index 1b026cc9c..55f9bcd08 100644
--- a/src/services/note/reaction/create.ts
+++ b/src/services/note/reaction/create.ts
@@ -90,7 +90,9 @@ export default async (user: User, note: Note, reaction: string) => {
 	// リアクターがローカルユーザーかつリアクション対象がリモートユーザーの投稿なら配送
 	if (Users.isLocalUser(user) && note.userHost !== null) {
 		const content = renderActivity(renderLike(user, note, reaction));
-		deliver(user, content, note.userInbox);
+		Users.findOne(note.userId).then(u => {
+			deliver(user, content, u.inbox);
+		});
 	}
 	//#endregion
 };
diff --git a/src/services/note/reaction/delete.ts b/src/services/note/reaction/delete.ts
index ce180aaec..76f5ed631 100644
--- a/src/services/note/reaction/delete.ts
+++ b/src/services/note/reaction/delete.ts
@@ -41,7 +41,9 @@ export default async (user: User, note: Note) => {
 	// リアクターがローカルユーザーかつリアクション対象がリモートユーザーの投稿なら配送
 	if (Users.isLocalUser(user) && (note.userHost !== null)) {
 		const content = renderActivity(renderUndo(renderLike(user, note, exist.reaction), user));
-		deliver(user, content, note.userInbox);
+		Users.findOne(note.userId).then(u => {
+			deliver(user, content, u.inbox);
+		});
 	}
 	//#endregion
 };