diff --git a/app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationActivity.java b/app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationActivity.java
index 53427cb012..dc611809fd 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationActivity.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationActivity.java
@@ -340,6 +340,7 @@ public class ConversationActivity extends PassphraseRequiredActivity
   protected HidingLinearLayout       inlineAttachmentToggle;
   private   InputPanel               inputPanel;
   private   View                     panelParent;
+  private   View                     noLongerMemberBanner;
 
   private LinkPreviewViewModel         linkPreviewViewModel;
   private ConversationSearchViewModel  searchViewModel;
@@ -1419,7 +1420,10 @@ public class ConversationActivity extends PassphraseRequiredActivity
 
   private void initializeEnabledCheck() {
     groupViewModel.getGroupActiveState().observe(this, state -> {
-      boolean enabled = state == null || !(isPushGroupConversation() && !state.isActiveGroup());
+      boolean inactivePushGroup = state != null && isPushGroupConversation() && !state.isActiveGroup();
+      boolean enabled = !inactivePushGroup;
+      noLongerMemberBanner.setVisibility(enabled ? View.GONE : View.VISIBLE);
+      inputPanel.setVisibility(enabled ? View.VISIBLE : View.GONE);
       inputPanel.setEnabled(enabled);
       sendButton.setEnabled(enabled);
       attachButton.setEnabled(enabled);
@@ -1701,6 +1705,8 @@ public class ConversationActivity extends PassphraseRequiredActivity
     ImageButton quickCameraToggle      = ViewUtil.findById(this, R.id.quick_camera_toggle);
     ImageButton inlineAttachmentButton = ViewUtil.findById(this, R.id.inline_attachment_button);
 
+    noLongerMemberBanner = findViewById(R.id.conversation_no_longer_member_banner);
+
     container.addOnKeyboardShownListener(this);
     inputPanel.setListener(this);
     inputPanel.setMediaListener(this);
@@ -2145,7 +2151,8 @@ public class ConversationActivity extends PassphraseRequiredActivity
       makeDefaultSmsButton.setVisibility(View.VISIBLE);
       registerButton.setVisibility(View.GONE);
     } else {
-      inputPanel.setVisibility(View.VISIBLE);
+      boolean inactivePushGroup = isPushGroupConversation() && !recipient.isActiveGroup();
+      inputPanel.setVisibility(inactivePushGroup ? View.GONE : View.VISIBLE);
       unblockButton.setVisibility(View.GONE);
       makeDefaultSmsButton.setVisibility(View.GONE);
       registerButton.setVisibility(View.GONE);
diff --git a/app/src/main/res/layout/conversation_activity.xml b/app/src/main/res/layout/conversation_activity.xml
index 9f7e653191..614b0705c2 100644
--- a/app/src/main/res/layout/conversation_activity.xml
+++ b/app/src/main/res/layout/conversation_activity.xml
@@ -83,6 +83,10 @@
                 android:clipChildren="false"
                 android:clipToPadding="false">
 
+                <include
+                    layout="@layout/conversation_no_longer_a_member"
+                    android:visibility="gone" />
+
                 <include layout="@layout/conversation_input_panel" />
 
                 <include layout="@layout/conversation_search_nav" />
diff --git a/app/src/main/res/layout/conversation_no_longer_a_member.xml b/app/src/main/res/layout/conversation_no_longer_a_member.xml
new file mode 100644
index 0000000000..1813f34771
--- /dev/null
+++ b/app/src/main/res/layout/conversation_no_longer_a_member.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/conversation_no_longer_member_banner"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="?secondary_background"
+    android:gravity="center"
+    android:paddingStart="16dp"
+    android:paddingTop="8dp"
+    android:paddingEnd="16dp"
+    android:paddingBottom="8dp"
+    android:text="@string/ConversationActivity_you_cant_send_messages_to_this_group"
+    android:textColor="?title_text_color_secondary" />
diff --git a/app/src/main/res/values/attrs.xml b/app/src/main/res/values/attrs.xml
index d82a68160f..42a6470e0a 100644
--- a/app/src/main/res/values/attrs.xml
+++ b/app/src/main/res/values/attrs.xml
@@ -17,6 +17,8 @@
     <attr name="attachment_keyboard_button_background" format="color|reference" />
     <attr name="attachment_keyboard_button_foreground" format="color" />
 
+    <attr name="secondary_background" format="reference" />
+
     <attr name="conversation_list_item_background" format="reference"/>
     <attr name="conversation_list_item_contact_color" format="reference|color"/>
     <attr name="conversation_list_item_subject_color" format="reference|color"/>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index fa832ceed3..fe6850eeaa 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -244,6 +244,7 @@
     <string name="ConversationActivity_attachment_exceeds_size_limits">Attachment exceeds size limits for the type of message you\'re sending.</string>
     <string name="ConversationActivity_quick_camera_unavailable">Camera unavailable</string>
     <string name="ConversationActivity_unable_to_record_audio">Unable to record audio!</string>
+    <string name="ConversationActivity_you_cant_send_messages_to_this_group">You can\'t send messages to this group because you\'re no longer a member.</string>
     <string name="ConversationActivity_there_is_no_app_available_to_handle_this_link_on_your_device">There is no app available to handle this link on your device.</string>
 
     <string name="ConversationActivity_to_send_audio_messages_allow_signal_access_to_your_microphone">To send audio messages, allow Signal access to your microphone.</string>
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 72ae22e0ca..0be62800f1 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -189,6 +189,7 @@
         <item name="colorControlHighlight">@color/core_ultramarine</item>
         <item name="android:windowBackground">@color/white</item>
         <item name="android:windowContentOverlay">@null</item>
+        <item name="secondary_background">@color/core_grey_02</item>
         <item name="alertDialogTheme">@style/AppCompatAlertDialogStyleLight</item>
         <item name="android:alertDialogTheme">@style/AppCompatDialogStyleLight</item>
         <item name="homeAsUpIndicator">@drawable/ic_arrow_left_24</item>
@@ -493,6 +494,7 @@
         <item name="android:colorControlHighlight" tools:ignore="NewApi">@color/core_ultramarine_light</item>
         <item name="android:windowBackground">@color/core_grey_95</item>
         <item name="android:windowContentOverlay">@null</item>
+        <item name="secondary_background">@color/core_grey_90</item>
         <item name="alertDialogTheme">@style/AppCompatAlertDialogStyleDark</item>
         <item name="android:alertDialogTheme">@style/AppCompatDialogStyleDark</item>
         <item name="homeAsUpIndicator">@drawable/ic_arrow_left_24</item>