diff -r b0b89ca206b5 -r 2c62ef3caffd emailuis/nmframeworkadapter/src/nmfwamessagepartfetchingoperation.cpp
--- a/emailuis/nmframeworkadapter/src/nmfwamessagepartfetchingoperation.cpp	Fri May 14 04:17:40 2010 +0300
+++ b/emailuis/nmframeworkadapter/src/nmfwamessagepartfetchingoperation.cpp	Fri May 14 04:41:45 2010 +0300
@@ -119,9 +119,20 @@
 }
 
 /*!
+ * Complete the operation
+ */
+void NmFwaMessagePartFetchingOperation::doCompleteOperation()
+{
+    mRequestId = NmNotFoundError;
+}
 
+/*!
+    Cancels the async operation. \sa NmOperation
  */
 void NmFwaMessagePartFetchingOperation::doCancelOperation()
 {
-    TRAP_IGNORE(mMailClient.CancelL(mRequestId));
+    if (mRequestId >= 0) {
+        TRAP_IGNORE(mMailClient.CancelL(mRequestId));
+        mRequestId = NmNotFoundError;
+    }
 }