Retry purge individual

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

@@ -2771,15 +2771,31 @@ class Core {
 
             EntityLog.log(context, folder.name + " purging=" + idelete.size() + "/" + imessages.length);
             if (account.isYahooJp()) {
-                for (Message imessage : idelete)
-                    imessage.setFlag(Flags.Flag.DELETED, true);
+                for (Message imessage : new ArrayList<>(idelete))
+                    try {
+                        imessage.setFlag(Flags.Flag.DELETED, true);
+                    } catch (MessagingException mex) {
+                        Log.w(mex);
+                        idelete.remove(imessage);
+                    }
             } else {
                 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
                 int chunk_size = prefs.getInt("chunk_size", DEFAULT_CHUNK_SIZE);
 
                 Flags flags = new Flags(Flags.Flag.DELETED);
                 for (List<Message> list : Helper.chunkList(idelete, chunk_size))
-                    ifolder.setFlags(list.toArray(new Message[0]), flags, true);
+                    try {
+                        ifolder.setFlags(list.toArray(new Message[0]), flags, true);
+                    } catch (MessagingException ex) {
+                        Log.w(ex);
+                        for (Message imessage : list)
+                            try {
+                                imessage.setFlag(Flags.Flag.DELETED, true);
+                            } catch (MessagingException mex) {
+                                Log.w(mex);
+                                idelete.remove(imessage);
+                            }
+                    }
             }
             Log.i(folder.name + " purge deleted");
             expunge(context, ifolder, idelete);