diff --git a/jni/dc_wrapper.c b/jni/dc_wrapper.c
index e0e4b0bf1..0b910dc1b 100644
--- a/jni/dc_wrapper.c
+++ b/jni/dc_wrapper.c
@@ -1364,12 +1364,6 @@ JNIEXPORT jint Java_com_b44t_messenger_DcMsg_getId(JNIEnv *env, jobject obj)
     return dc_msg_get_id(get_dc_msg(env, obj));
 }
 
-
-JNIEXPORT jboolean Java_com_b44t_messenger_DcMsg_isOutgoing(JNIEnv *env, jobject obj)
-{
-    return (jboolean)(dc_msg_is_outgoing(get_dc_msg(env, obj))!=0);
-}
-
 JNIEXPORT jint Java_com_b44t_messenger_DcMsg_getSenderColor(JNIEnv *env, jobject obj)
 {
   return dc_msg_get_sender_color(get_dc_msg(env, obj));
diff --git a/jni/deltachat-core-rust b/jni/deltachat-core-rust
index ba15bba35..7da0662be 160000
--- a/jni/deltachat-core-rust
+++ b/jni/deltachat-core-rust
@@ -1 +1 @@
-Subproject commit ba15bba35dc995006854287b5a8842dfd43ee5f1
+Subproject commit 7da0662be076f5206e8c95d061461c38fc4dee7e
diff --git a/src/main/java/com/b44t/messenger/DcMsg.java b/src/main/java/com/b44t/messenger/DcMsg.java
index 56b5b7f18..83db626c0 100644
--- a/src/main/java/com/b44t/messenger/DcMsg.java
+++ b/src/main/java/com/b44t/messenger/DcMsg.java
@@ -169,7 +169,6 @@ public JSONObject     getWebxdcInfo      () {
     public native String  getQuotedText      ();
     public native String  getError           ();
     public native String  getOverrideSenderName();
-    public native boolean isOutgoing();
     public native int     getSenderColor();
 
     public String getSenderName(DcContact dcContact) {
@@ -210,6 +209,10 @@ public static int[] msgSetToIds(final Set<DcMsg> dcMsgs) {
         return ids;
     }
 
+    public boolean isOutgoing() {
+        return getFromId() == DcContact.DC_CONTACT_ID_SELF;
+    }
+
     public String getDisplayBody()  {
         return getText();
     }
diff --git a/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java b/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java
index 527e7e331..bf24fda4f 100644
--- a/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java
+++ b/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java
@@ -124,9 +124,6 @@ public void onCreate() {
           e.printStackTrace();
         }
       }
-      if ("deltafans@nine.testrun.org".equals(ac.getConfig("configured_addr")) && !ac.isCommunity()) {
-          ac.setCommunityMode(true);
-      }
     }
     if (allAccounts.length == 0) {
       dcAccounts.addAccount();
@@ -232,11 +229,10 @@ public void onReceive(Context context, Intent intent) {
             TimeUnit.MILLISECONDS)
             .setConstraints(constraints)
             .build();
-    try {
-      // in Android 4 this throws exception due to R8/shrinking
-      WorkManager.getInstance(this)
-        .enqueueUniquePeriodicWork("FetchWorker", ExistingPeriodicWorkPolicy.KEEP, fetchWorkRequest);
-    } catch (Throwable e) {}
+    WorkManager.getInstance(this).enqueueUniquePeriodicWork(
+            "FetchWorker",
+            ExistingPeriodicWorkPolicy.KEEP,
+            fetchWorkRequest);
     AppCompatDelegate.setCompatVectorFromResourcesEnabled(true);
 
     if (Prefs.isPushEnabled(this)) {