Suppress organization if undetermined

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

@@ -112,6 +112,7 @@ import org.jsoup.nodes.Element;
 import java.io.File;
 import java.io.IOException;
 import java.io.UnsupportedEncodingException;
+import java.net.UnknownHostException;
 import java.text.DateFormat;
 import java.text.NumberFormat;
 import java.text.SimpleDateFormat;
@@ -2175,14 +2176,14 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                 final EditText etLink = view.findViewById(R.id.etLink);
                 TextView tvInsecure = view.findViewById(R.id.tvInsecure);
                 final TextView tvOwner = view.findViewById(R.id.tvOwner);
-                Group grpOwner = view.findViewById(R.id.grpOwner);
+                final Group grpOwner = view.findViewById(R.id.grpOwner);
 
                 tvTitle.setText(title);
                 tvTitle.setVisibility(TextUtils.isEmpty(title) ? View.GONE : View.VISIBLE);
 
                 etLink.setText(_uri.toString());
                 tvInsecure.setVisibility("http".equals(_uri.getScheme()) ? View.VISIBLE : View.GONE);
-                grpOwner.setVisibility(paranoid ? View.VISIBLE : View.GONE);
+                grpOwner.setVisibility(View.GONE);
 
                 if (paranoid) {
                     Bundle args = new Bundle();
@@ -2192,6 +2193,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                         @Override
                         protected void onPreExecute(Bundle args) {
                             tvOwner.setText("…");
+                            grpOwner.setVisibility(View.VISIBLE);
                         }
 
                         @Override
@@ -2207,12 +2209,14 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
 
                         @Override
                         protected void onException(Bundle args, Throwable ex) {
-                            tvOwner.setText(ex.getMessage());
+                            if (ex instanceof UnknownHostException)
+                                grpOwner.setVisibility(View.GONE);
+                            else
+                                tvOwner.setText(ex.getMessage());
                         }
                     }.execute(context, owner, args, "link:domain");
                 }
 
-
                 new DialogBuilderLifecycle(context, owner)
                         .setView(view)
                         .setPositiveButton(R.string.title_yes, new DialogInterface.OnClickListener() {

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

@@ -28,6 +28,7 @@ import java.io.IOException;
 import java.io.InputStreamReader;
 import java.net.InetAddress;
 import java.net.URL;
+import java.net.UnknownHostException;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -41,13 +42,13 @@ public class IPInfo {
             MailTo email = MailTo.parse(uri.toString());
             String to = email.getTo();
             if (to == null || !to.contains("@"))
-                return null;
+                throw new UnknownHostException();
             String host = to.substring(to.indexOf('@') + 1);
             return getOrganization(host);
         } else {
             String host = uri.getHost();
             if (host == null)
-                return null;
+                throw new UnknownHostException();
             return getOrganization(host);
         }
     }