diff --git a/Wino.Core/Synchronizers/Errors/Outlook/ObjectCannotBeDeletedHandler.cs b/Wino.Core/Synchronizers/Errors/Outlook/ObjectCannotBeDeletedHandler.cs
index 2d78ad64..08766a18 100644
--- a/Wino.Core/Synchronizers/Errors/Outlook/ObjectCannotBeDeletedHandler.cs
+++ b/Wino.Core/Synchronizers/Errors/Outlook/ObjectCannotBeDeletedHandler.cs
@@ -18,7 +18,7 @@ public class ObjectCannotBeDeletedHandler : ISynchronizerErrorHandler
 
     public bool CanHandle(SynchronizerErrorContext error)
     {
-        return error.ErrorMessage.Contains("ErrorCannotDeleteObject") && error.RequestBundle is HttpRequestBundle<RequestInformation>;
+        return error.ErrorMessage.Contains("Object cannot be deleted.") && error.RequestBundle is HttpRequestBundle<RequestInformation>;
     }
 
     public async Task<bool> HandleAsync(SynchronizerErrorContext error)
diff --git a/Wino.Core/Synchronizers/OutlookSynchronizer.cs b/Wino.Core/Synchronizers/OutlookSynchronizer.cs
index 721281d6..5c63e609 100644
--- a/Wino.Core/Synchronizers/OutlookSynchronizer.cs
+++ b/Wino.Core/Synchronizers/OutlookSynchronizer.cs
@@ -893,6 +893,16 @@ public class OutlookSynchronizer : WinoSynchronizer<RequestInformation, Message,
         {
             throw;
         }
+        //catch (ServiceException retryAfterException) when (retryAfterException.ResponseStatusCode == 429 && retryAfterException.ResponseHeaders.Contains("Retry-After"))
+        //{
+        //    // This request must be retried after some time.
+        //    var retryAfterValue = retryAfterException.ResponseHeaders.GetValues("Retry-After").FirstOrDefault();
+
+        //    if (int.TryParse(retryAfterValue, out int seconds))
+        //    {
+        //        await Task.Delay(seconds);
+        //    }
+        //}
         catch (ServiceException serviceException)
         {
             // TODO: AOT Comaptible inner exception deserialization.