Add local contacts for POP3 send

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

@@ -340,10 +340,13 @@ class Core {
 
                                 case EntityOperation.ANSWERED:
                                 case EntityOperation.ADD:
-                                case EntityOperation.EXISTS:
                                     // Do nothing
                                     break;
 
+                                case EntityOperation.EXISTS:
+                                    onExists(context, jargs, account, folder, message);
+                                    break;
+
                                 case EntityOperation.MOVE:
                                     onMove(context, jargs, folder, message);
                                     break;
@@ -1857,6 +1860,11 @@ class Core {
             EntityLog.log(context, "Operation attachment size=" + attachment.size);
     }
 
+    private static void onExists(Context context, JSONArray jargs, EntityAccount account, EntityFolder folder, EntityMessage message) {
+        // POP3
+        EntityContact.received(context, account, folder, message);
+    }
+
     private static void onExists(Context context, JSONArray jargs, EntityAccount account, EntityFolder folder, EntityMessage message, EntityOperation op, IMAPFolder ifolder) throws MessagingException, IOException {
         DB db = DB.getInstance(context);
 

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

@@ -100,11 +100,13 @@ public class EntityContact implements Serializable {
             @NonNull EntityAccount account,
             @NonNull EntityFolder folder,
             @NonNull EntityMessage message) {
-        int days = (folder.isOutgoing() ? folder.keep_days : folder.sync_days);
-        if (days == Integer.MAX_VALUE)
-            days = EntityFolder.DEFAULT_KEEP;
-        if (message.received < account.created - days * 24 * 3600 * 1000L)
-            return;
+        if (account.protocol == EntityAccount.TYPE_IMAP) {
+            int days = (folder.isOutgoing() ? folder.keep_days : folder.sync_days);
+            if (days == Integer.MAX_VALUE)
+                days = EntityFolder.DEFAULT_KEEP;
+            if (message.received < account.created - days * 24 * 3600 * 1000L)
+                return;
+        }
 
         if (EntityFolder.DRAFTS.equals(folder.type) ||
                 EntityFolder.ARCHIVE.equals(folder.type) ||