diff --git a/app/src/main/java/eu/faircode/email/BoundaryCallbackMessages.java b/app/src/main/java/eu/faircode/email/BoundaryCallbackMessages.java
index a37e657cb8..7d63fc03c9 100644
--- a/app/src/main/java/eu/faircode/email/BoundaryCallbackMessages.java
+++ b/app/src/main/java/eu/faircode/email/BoundaryCallbackMessages.java
@@ -499,7 +499,7 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
                                     account, browsable,
                                     (IMAPStore) state.iservice.getStore(), state.ifolder, (MimeMessage) isub[j],
                                     true, true,
-                                    rules, astate);
+                                    rules, astate, null);
                             found++;
                         }
                         if (message != null && criteria != null /* browsed */)
diff --git a/app/src/main/java/eu/faircode/email/Core.java b/app/src/main/java/eu/faircode/email/Core.java
index 9b78eb477b..79f0098d0f 100644
--- a/app/src/main/java/eu/faircode/email/Core.java
+++ b/app/src/main/java/eu/faircode/email/Core.java
@@ -1095,6 +1095,8 @@ class Core {
         List<EntityRule> rules = db.rule().getEnabledRules(folder.id);
 
         try {
+            SyncStats stats = new SyncStats();
+
             MimeMessage imessage = (MimeMessage) ifolder.getMessageByUID(uid);
             if (imessage == null)
                 throw new MessageRemovedException();
@@ -1115,7 +1117,7 @@ class Core {
                 }
                 ifolder.fetch(new Message[]{imessage}, fp);
 
-                EntityMessage message = synchronizeMessage(context, account, folder, istore, ifolder, imessage, false, download, rules, state);
+                EntityMessage message = synchronizeMessage(context, account, folder, istore, ifolder, imessage, false, download, rules, state, stats);
                 if (message != null) {
                     if (account.isGmail() && EntityFolder.USER.equals(folder.type))
                         try {
@@ -1128,8 +1130,10 @@ class Core {
                         }
 
                     if (download)
-                        downloadMessage(context, account, folder, istore, ifolder, imessage, message.id, state);
+                        downloadMessage(context, account, folder, istore, ifolder, imessage, message.id, state, stats);
                 }
+
+                EntityLog.log(context, folder.name + " fetch stats " + stats);
             } finally {
                 ((IMAPMessage) imessage).invalidateHeaders();
             }
@@ -1362,6 +1366,9 @@ class Core {
                 parts.isPlainOnly(),
                 HtmlHelper.getPreview(body),
                 parts.getWarnings(message.warning));
+
+        if (body != null)
+            EntityLog.log(context, "Operation body size=" + body.length());
     }
 
     private static void onAttachment(Context context, JSONArray jargs, EntityFolder folder, EntityMessage message, EntityOperation op, IMAPFolder ifolder) throws JSONException, MessagingException, IOException {
@@ -1390,6 +1397,9 @@ class Core {
 
         // Download attachment
         parts.downloadAttachment(context, attachment);
+
+        if (attachment.size != null)
+            EntityLog.log(context, "Operation attachment size=" + attachment.size);
     }
 
     private static void onExists(Context context, JSONArray jargs, EntityFolder folder, EntityMessage message, EntityOperation op, IMAPFolder ifolder) throws MessagingException {
@@ -1950,6 +1960,8 @@ class Core {
             IMAPStore istore, final IMAPFolder ifolder, State state) throws JSONException, MessagingException, IOException {
         final DB db = DB.getInstance(context);
         try {
+            SyncStats stats = new SyncStats();
+
             // Legacy
             if (jargs.length() == 0)
                 jargs = folder.getSyncArgs();
@@ -2059,9 +2071,11 @@ class Core {
             }
             if (imessages == null)
                 imessages = new Message[0];
-            Log.i(folder.name + " remote count=" + imessages.length +
-                    " search=" + (SystemClock.elapsedRealtime() - search) + " ms");
 
+            stats.search_ms = (SystemClock.elapsedRealtime() - search);
+            Log.i(folder.name + " remote count=" + imessages.length + " search=" + stats.search_ms + " ms");
+
+            long fetch = SystemClock.elapsedRealtime();
             FetchProfile fp = new FetchProfile();
             fp.add(UIDFolder.FetchProfileItem.UID); // To check if message exists
             fp.add(FetchProfile.Item.FLAGS); // To update existing messages
@@ -2069,8 +2083,9 @@ class Core {
                 fp.add(GmailFolder.FetchProfileItem.LABELS);
             ifolder.fetch(imessages, fp);
 
-            long fetch = SystemClock.elapsedRealtime();
-            Log.i(folder.name + " remote fetched=" + (SystemClock.elapsedRealtime() - fetch) + " ms");
+            stats.flags = imessages.length;
+            stats.flags_ms = (SystemClock.elapsedRealtime() - fetch);
+            Log.i(folder.name + " remote fetched=" + stats.flags_ms + " ms");
 
             // Sort for finding referenced/replied-to messages
             // Sorting on date/time would be better, but requires fetching the headers
@@ -2102,6 +2117,7 @@ class Core {
                 if (!ifolder.isOpen())
                     throw new FolderClosedException(ifolder, "UID FETCH");
 
+                long getuid = SystemClock.elapsedRealtime();
                 MessagingException ex = (MessagingException) ifolder.doCommand(new IMAPFolder.ProtocolCommand() {
                     @Override
                     public Object doCommand(IMAPProtocol protocol) {
@@ -2173,8 +2189,9 @@ class Core {
                 if (ex != null)
                     throw ex;
 
-                long getuid = SystemClock.elapsedRealtime();
-                Log.i(folder.name + " remote uids=" + (SystemClock.elapsedRealtime() - getuid) + " ms");
+                stats.uids = uids.size();
+                stats.uids_ms = (SystemClock.elapsedRealtime() - getuid);
+                Log.i(folder.name + " remote uids=" + stats.uids_ms + " ms");
             }
 
             // Delete local messages not at remote
@@ -2215,8 +2232,9 @@ class Core {
                 if (full.size() > 0) {
                     long headers = SystemClock.elapsedRealtime();
                     ifolder.fetch(full.toArray(new Message[0]), fp);
-                    Log.i(folder.name + " fetched headers=" + full.size() +
-                            " " + (SystemClock.elapsedRealtime() - headers) + " ms");
+                    stats.headers += full.size();
+                    stats.headers_ms += (SystemClock.elapsedRealtime() - headers);
+                    Log.i(folder.name + " fetched headers=" + full.size() + " " + stats.headers_ms + " ms");
                 }
 
                 int free = Log.getFreeMemMb();
@@ -2250,7 +2268,7 @@ class Core {
                                 account, folder,
                                 istore, ifolder, (MimeMessage) isub[j],
                                 false, download && initialize == 0,
-                                rules, state);
+                                rules, state, stats);
                         ids[from + j] = (message == null || message.ui_hide ? null : message.id);
                     } catch (MessageRemovedException ex) {
                         Log.w(folder.name, ex);
@@ -2318,7 +2336,8 @@ class Core {
                                         context,
                                         account, folder,
                                         istore, ifolder,
-                                        (MimeMessage) isub[j], ids[from + j], state);
+                                        (MimeMessage) isub[j], ids[from + j],
+                                        state, stats);
                         } catch (FolderClosedException ex) {
                             throw ex;
                         } catch (Throwable ex) {
@@ -2351,6 +2370,8 @@ class Core {
             db.folder().setFolderLastSync(folder.id, new Date().getTime());
             db.folder().setFolderError(folder.id, null);
 
+            stats.total = (SystemClock.elapsedRealtime() - search);
+            EntityLog.log(context, folder.name + " sync stats " + stats);
         } finally {
             Log.i(folder.name + " end sync state=" + state);
             db.folder().setFolderSyncState(folder.id, null);
@@ -2362,7 +2383,7 @@ class Core {
             EntityAccount account, EntityFolder folder,
             IMAPStore istore, IMAPFolder ifolder, MimeMessage imessage,
             boolean browsed, boolean download,
-            List<EntityRule> rules, State state) throws MessagingException, IOException {
+            List<EntityRule> rules, State state, SyncStats stats) throws MessagingException, IOException {
 
         long uid = ifolder.getUID(imessage);
         if (uid < 0) {
@@ -2672,6 +2693,8 @@ class Core {
                             parts.isPlainOnly(),
                             HtmlHelper.getPreview(body),
                             parts.getWarnings(message.warning));
+                    if (stats != null && body != null)
+                        stats.content += body.length();
                     Log.i(folder.name + " inline downloaded message id=" + message.id +
                             " size=" + message.size + "/" + (body == null ? null : body.length()));
 
@@ -2996,7 +3019,7 @@ class Core {
             Context context,
             EntityAccount account, EntityFolder folder,
             IMAPStore istore, IMAPFolder ifolder,
-            MimeMessage imessage, long id, State state) throws MessagingException, IOException {
+            MimeMessage imessage, long id, State state, SyncStats stats) throws MessagingException, IOException {
         if (state.getNetworkState().isRoaming())
             return;
 
@@ -3060,6 +3083,8 @@ class Core {
                             parts.isPlainOnly(),
                             HtmlHelper.getPreview(body),
                             parts.getWarnings(message.warning));
+                    if (stats != null && body != null)
+                        stats.content += body.length();
                     Log.i(folder.name + " downloaded message id=" + message.id +
                             " size=" + message.size + "/" + (body == null ? null : body.length()));
 
@@ -3074,6 +3099,8 @@ class Core {
                             (attachment.size != null && attachment.size < maxSize))
                         try {
                             parts.downloadAttachment(context, attachment);
+                            if (stats != null && attachment.size != null)
+                                stats.attachments += attachment.size;
                         } catch (Throwable ex) {
                             Log.e(folder.name, ex);
                             db.attachment().setError(attachment.id, Log.formatThrowable(ex, false));
@@ -4045,4 +4072,28 @@ class Core {
             }
         }
     }
+
+    private static class SyncStats {
+        long search_ms;
+        int flags;
+        int uids;
+        long flags_ms;
+        long uids_ms;
+        int headers;
+        long headers_ms;
+        long content;
+        long attachments;
+        long total;
+
+        @Override
+        public String toString() {
+            return "search=" + search_ms + " ms" +
+                    " flags=" + flags + "/" + flags_ms + " ms" +
+                    " uids=" + uids + "/" + uids_ms + " ms" +
+                    " headers=" + headers + "/" + headers_ms + " ms" +
+                    " content=" + Helper.humanReadableByteCount(content) +
+                    " attachments=" + Helper.humanReadableByteCount(attachments) +
+                    " total=" + total;
+        }
+    }
 }