diff --git a/app/build.gradle b/app/build.gradle
index 0b61028c7d..4eff9c770a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -167,6 +167,7 @@ configurations.all {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
+    def core_version = "1.2.0-alpha04"
     def appcompat_version = "1.1.0"
     def fragment_version = "1.1.0"
     def recyclerview_version = "1.1.0-beta04"
@@ -199,6 +200,9 @@ dependencies {
 
     // https://developer.android.com/jetpack/androidx/releases/
 
+    // https://mvnrepository.com/artifact/androidx.core/core
+    implementation "androidx.core:core:$core_version"
+
     // https://mvnrepository.com/artifact/androidx.appcompat/appcompat
     // https://mvnrepository.com/artifact/androidx.fragment/fragment
     implementation "androidx.appcompat:appcompat:$appcompat_version"
diff --git a/app/src/main/java/eu/faircode/email/Core.java b/app/src/main/java/eu/faircode/email/Core.java
index d714c8c1eb..8079b78047 100644
--- a/app/src/main/java/eu/faircode/email/Core.java
+++ b/app/src/main/java/eu/faircode/email/Core.java
@@ -2236,9 +2236,8 @@ class Core {
                             .setPriority(NotificationCompat.PRIORITY_DEFAULT)
                             .setCategory(NotificationCompat.CATEGORY_EMAIL)
                             .setVisibility(NotificationCompat.VISIBILITY_PRIVATE)
-                            .setOnlyAlertOnce(alert_once);
-
-            // TODO: setAllowSystemGeneratedContextualActions
+                            .setOnlyAlertOnce(alert_once)
+                            .setAllowSystemGeneratedContextualActions(false);
 
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
                 mbuilder