diff --git a/plugins/activity-assets/lang/en.json b/plugins/activity-assets/lang/en.json
index 9560807984..dfd9d563f2 100644
--- a/plugins/activity-assets/lang/en.json
+++ b/plugins/activity-assets/lang/en.json
@@ -38,7 +38,7 @@
     "Mentioned": "Mentioned",
     "You": "You",
     "Mentions": "Mentions",
-    "MentionedYouIn": "Mentioned you in",
+    "MentionedYouIn": "Mentioned you in {title}",
     "Messages": "Messages",
     "Thread": "Thread",
     "AddReaction": "Add reaction",
diff --git a/plugins/activity-assets/lang/es.json b/plugins/activity-assets/lang/es.json
index 99eb98a1db..c297301833 100644
--- a/plugins/activity-assets/lang/es.json
+++ b/plugins/activity-assets/lang/es.json
@@ -37,6 +37,6 @@
     "Mentioned": "Mencionado",
     "You": "Tú",
     "Mentions": "Menciones",
-    "MentionedYouIn": "Has sido Mencionado en"
+    "MentionedYouIn": "Has sido Mencionado en {title}"
   }
 }
\ No newline at end of file
diff --git a/plugins/activity-assets/lang/pt.json b/plugins/activity-assets/lang/pt.json
index da81bcea14..8ca2b0bc42 100644
--- a/plugins/activity-assets/lang/pt.json
+++ b/plugins/activity-assets/lang/pt.json
@@ -37,6 +37,6 @@
     "Mentioned": "Mencionado",
     "You": "Tu",
     "Mentions": "Menções",
-    "MentionedYouIn": "Foste Mencionado em"
+    "MentionedYouIn": "Foste Mencionado em {title}"
   }
 }
\ No newline at end of file
diff --git a/plugins/activity-assets/lang/ru.json b/plugins/activity-assets/lang/ru.json
index a89b188e2f..ba7a29ce60 100644
--- a/plugins/activity-assets/lang/ru.json
+++ b/plugins/activity-assets/lang/ru.json
@@ -38,7 +38,7 @@
     "Mentioned": "Упомянул(а)",
     "You": "Вы",
     "Mentions": "Упоминания",
-    "MentionedYouIn": "Упомянул(а) вас в",
+    "MentionedYouIn": "Упомянул(а) вас в {title}",
     "Messages": "Cообщения",
     "Thread": "Обсуждение",
     "AddReaction": "Добавить реакцию",
diff --git a/plugins/activity-resources/src/components/BasePreview.svelte b/plugins/activity-resources/src/components/BasePreview.svelte
index 9f949569a1..f6fdf55bdd 100644
--- a/plugins/activity-resources/src/components/BasePreview.svelte
+++ b/plugins/activity-resources/src/components/BasePreview.svelte
@@ -41,6 +41,7 @@
   export let headerObject: Doc | undefined = undefined
   export let headerIcon: Asset | undefined = undefined
   export let header: IntlString | undefined = undefined
+  export let headerParams: Record<string, any> = {}
 
   const client = getClient()
   const limit = 300
@@ -124,7 +125,10 @@
         {#if !isCompact}
           {#if headerObject}
             <DocNavLink object={headerObject} colorInherit>
-              <Label label={header ?? client.getHierarchy().getClass(headerObject._class).label} />
+              <Label
+                label={header ?? client.getHierarchy().getClass(headerObject._class).label}
+                params={headerParams}
+              />
             </DocNavLink>
           {:else if person}
             <EmployeePresenter value={person} shouldShowAvatar={false} compact showStatus={false} />
diff --git a/plugins/notification-resources/src/components/inbox/CommonInboxNotificationPresenter.svelte b/plugins/notification-resources/src/components/inbox/CommonInboxNotificationPresenter.svelte
index 5ff8235ba8..f572fa3bc0 100644
--- a/plugins/notification-resources/src/components/inbox/CommonInboxNotificationPresenter.svelte
+++ b/plugins/notification-resources/src/components/inbox/CommonInboxNotificationPresenter.svelte
@@ -47,6 +47,7 @@
 <BasePreview
   headerIcon={value.headerIcon}
   header={value.header}
+  headerParams={value.intlParams}
   {headerObject}
   text={content}
   account={value.createdBy ?? value.modifiedBy}
diff --git a/server-plugins/activity-resources/src/references.ts b/server-plugins/activity-resources/src/references.ts
index cbda69e526..01876621a4 100644
--- a/server-plugins/activity-resources/src/references.ts
+++ b/server-plugins/activity-resources/src/references.ts
@@ -304,6 +304,12 @@ async function getMessageNotifyResult (
     return { allowed: false, emails: [], push: false }
   }
 
+  const mixin = control.hierarchy.as(doc, notification.mixin.Collaborators)
+
+  if (mixin === undefined || !mixin.collaborators.includes(receiver)) {
+    return { allowed: false, emails: [], push: false }
+  }
+
   if (!hierarchy.isDerived(reference.attachedDocClass, activity.class.ActivityMessage)) {
     return { allowed: false, emails: [], push: false }
   }