diff --git a/kolabformat/mimeobject.cpp b/kolabformat/mimeobject.cpp
--- a/kolabformat/mimeobject.cpp
+++ b/kolabformat/mimeobject.cpp
@@ -254,25 +254,31 @@
         case EventObject: {
             QStringList attachments;
             KCalCore::Event::Ptr kEvent = fromXML<KCalCore::Event::Ptr, KolabV2::Event>(xmlData, attachments);
-            Kolab::Event event = Kolab::Conversion::fromKCalCore(*kEvent);
-            event.setAttachments(getAttachments(attachments, msg));
-            variant = QVariant::fromValue(event);
+            if (kEvent) {
+                Kolab::Event event = Kolab::Conversion::fromKCalCore(*kEvent);
+                event.setAttachments(getAttachments(attachments, msg));
+                variant = QVariant::fromValue(event);
+            }
             break;
         }
         case TodoObject: {
             QStringList attachments;
             KCalCore::Todo::Ptr kTodo = fromXML<KCalCore::Todo::Ptr, KolabV2::Task>(xmlData, attachments);
-            Kolab::Todo todo = Kolab::Conversion::fromKCalCore(*kTodo);
-            todo.setAttachments(getAttachments(attachments, msg));
-            variant = QVariant::fromValue(todo);
+            if (kTodo) {
+                Kolab::Todo todo = Kolab::Conversion::fromKCalCore(*kTodo);
+                todo.setAttachments(getAttachments(attachments, msg));
+                variant = QVariant::fromValue(todo);
+            }
             break;
         }
         case JournalObject: {
             QStringList attachments;
             KCalCore::Journal::Ptr kJournal = fromXML<KCalCore::Journal::Ptr, KolabV2::Journal>(xmlData, attachments);
-            Kolab::Journal journal = Kolab::Conversion::fromKCalCore(*kJournal);
-            journal.setAttachments(getAttachments(attachments, msg));
-            variant = QVariant::fromValue(journal);
+            if (kJournal) {
+                Kolab::Journal journal = Kolab::Conversion::fromKCalCore(*kJournal);
+                journal.setAttachments(getAttachments(attachments, msg));
+                variant = QVariant::fromValue(journal);
+            }
             break;
         }
         case ContactObject: {