diff --git a/app/src/main/res/layout/dialog_unblock.xml b/app/src/main/res/layout/dialog_unblock.xml
index be23a0048f..c899e260b0 100644
--- a/app/src/main/res/layout/dialog_unblock.xml
+++ b/app/src/main/res/layout/dialog_unblock.xml
@@ -27,12 +27,23 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginTop="12dp"
-            android:labelFor="@+id/etName"
             android:text="@string/title_unblock_all_remark"
             android:textAppearance="@style/TextAppearance.AppCompat.Medium"
             android:textColor="?attr/colorWarning"
             android:textStyle="bold"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/tvCaption" />
+
+        <TextView
+            android:id="@+id/tvHint"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="12dp"
+            android:text="@string/title_unblock_all_hint"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
+            android:textColor="?android:textColorPrimary"
+            android:textStyle="italic"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/tvRemark" />
     </androidx.constraintlayout.widget.ConstraintLayout>
 </ScrollView>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 6053e1bc2c..3bb0f5c334 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -119,6 +119,7 @@
     <string name="title_blocked_senders">Blocked senders</string>
     <string name="title_unblock_all">Unblock all</string>
     <string name="title_unblock_all_remark">This will reset all lists and options that could result in blocking senders</string>
+    <string name="title_unblock_all_hint">Note that the app cannot prevent the email server from moving messages to the spam folder!</string>
 
     <plurals name="title_ask_block_sender">
         <item quantity="one">Block sender of %1$s message?</item>