diff --git a/DysonNetwork.Sphere/Post/PostController.cs b/DysonNetwork.Sphere/Post/PostController.cs
index cbfafcf..d228453 100644
--- a/DysonNetwork.Sphere/Post/PostController.cs
+++ b/DysonNetwork.Sphere/Post/PostController.cs
@@ -216,13 +216,6 @@ public class PostController(
             return BadRequest(err.Message);
         }
 
-        _ = Task.Run(async () =>
-        {
-            using var scope = factory.CreateScope();
-            var subs = scope.ServiceProvider.GetRequiredService<PublisherSubscriptionService>();
-            await subs.NotifySubscriberPost(post);
-        });
-
         als.CreateActionLogFromRequest(
             ActionLogType.PostCreate,
             new Dictionary<string, object> { { "post_id", post.Id } }, Request
diff --git a/DysonNetwork.Sphere/Publisher/PublisherSubscriptionService.cs b/DysonNetwork.Sphere/Publisher/PublisherSubscriptionService.cs
index c48dfbb..36585ba 100644
--- a/DysonNetwork.Sphere/Publisher/PublisherSubscriptionService.cs
+++ b/DysonNetwork.Sphere/Publisher/PublisherSubscriptionService.cs
@@ -52,7 +52,7 @@ public class PublisherSubscriptionService(
         var subscribers = await db.PublisherSubscriptions
             .Include(p => p.Account)
             .Where(p => p.PublisherId == post.PublisherId &&
-                         p.Status == PublisherSubscriptionStatus.Active)
+                        p.Status == PublisherSubscriptionStatus.Active)
             .ToListAsync();
         if (subscribers.Count == 0)
             return 0;
@@ -69,7 +69,7 @@ public class PublisherSubscriptionService(
 
         // Notify each subscriber
         var notifiedCount = 0;
-        foreach (var subscription in subscribers.GroupBy(s => s.AccountId).Select(g => g.First()))
+        foreach (var subscription in subscribers.DistinctBy(s => s.AccountId))
         {
             try
             {
@@ -162,7 +162,7 @@ public class PublisherSubscriptionService(
 
         db.PublisherSubscriptions.Add(subscription);
         await db.SaveChangesAsync();
-        
+
         await cache.RemoveAsync(string.Format(PublisherService.SubscribedPublishersCacheKey, accountId));
 
         return subscription;
@@ -182,9 +182,9 @@ public class PublisherSubscriptionService(
 
         subscription.Status = PublisherSubscriptionStatus.Cancelled;
         await db.SaveChangesAsync();
-        
+
         await cache.RemoveAsync(string.Format(PublisherService.SubscribedPublishersCacheKey, accountId));
-        
+
         return true;
     }
 }
\ No newline at end of file