diff --git a/lib/IMAP/Sync/Synchronizer.php b/lib/IMAP/Sync/Synchronizer.php
index a95b2e85f2..aa87328586 100644
--- a/lib/IMAP/Sync/Synchronizer.php
+++ b/lib/IMAP/Sync/Synchronizer.php
@@ -81,6 +81,7 @@ public function sync(Horde_Imap_Client_Base $imapClient,
 			throw $e;
 		}
 
+		$logger->debug('Fetching new and changed messages after sync');
 		$newMessages = $this->messageMapper->findByIds($imapClient, $request->getMailbox(), $newUids, $userId);
 		$nNew = count($newMessages);
 		$logger->debug("Found {$nNew} new messages");
@@ -109,6 +110,8 @@ private function doCombinedSync(Horde_Imap_Client_Base $imapClient,
 			'criteria' => Horde_Imap_Client::SYNC_ALL,
 		]);
 
+		$logger->debug('Combined sync finished');
+
 		return [
 			$syncData->newmsgsuids,
 			$syncData->flagsuids,