Added two solutions for no public key

app/src/main/java/eu/faircode/email/FragmentCompose.java

@@ -2603,10 +2603,35 @@ public class FragmentCompose extends FragmentBase {
                                         new Intent(getContext(), ActivitySetup.class)
                                                 .putExtra("tab", "encryption"));
                             else {
-                                FragmentDialogSend fragment = new FragmentDialogSend();
+                                View vwAnchor = view.findViewById(R.id.vwAnchor);
-                                fragment.setArguments(args);
+                                PopupMenuLifecycle popupMenu = new PopupMenuLifecycle(getContext(), getViewLifecycleOwner(), vwAnchor);
-                                fragment.setTargetFragment(FragmentCompose.this, REQUEST_SEND);
+                                popupMenu.getMenu().add(Menu.NONE, R.string.title_send_dialog, 1, R.string.title_send_dialog);
-                                fragment.show(getParentFragmentManager(), "compose:send");
+                                popupMenu.getMenu().add(Menu.NONE, R.string.title_advanced_manage_certificates, 2, R.string.title_advanced_manage_certificates);
+
+                                popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
+                                    @Override
+                                    public boolean onMenuItemClick(MenuItem item) {
+                                        switch (item.getItemId()) {
+                                            case R.string.title_send_dialog:
+                                                FragmentDialogSend fragment = new FragmentDialogSend();
+                                                fragment.setArguments(args);
+                                                fragment.setTargetFragment(FragmentCompose.this, REQUEST_SEND);
+                                                fragment.show(getParentFragmentManager(), "compose:send");
+                                                return true;
+
+                                            case R.string.title_advanced_manage_certificates:
+                                                startActivity(
+                                                        new Intent(getContext(), ActivitySetup.class)
+                                                                .putExtra("tab", "encryption"));
+                                                return true;
+
+                                            default:
+                                                return false;
+                                        }
+                                    }
+                                });
+
+                                popupMenu.show();
                             }
                         }
                     });

app/src/main/res/layout/fragment_compose.xml

@@ -459,6 +459,13 @@
             </androidx.constraintlayout.widget.ConstraintLayout>
         </eu.faircode.email.ScrollViewEx>
 
+        <View
+            android:id="@+id/vwAnchor"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            app:layout_constraintBottom_toTopOf="@+id/style_bar"
+            app:layout_constraintEnd_toEndOf="parent" />
+
         <com.google.android.material.bottomnavigation.BottomNavigationView
             android:id="@+id/style_bar"
             android:layout_width="0dp"