If some settings like drafts/sent items, are changed
observed the crash in exchange storage.

On evolution-exchange-storage console found, 
*** glibc detected *** corrupted double-linked list: 0x4191e8d8 ***

The gdb stack traces for the crash,

+ Trace 66371

and the valgrind traces are
==14954== Invalid free() / delete / delete[]
==14954==    at 0x401BF57: free (vg_replace_malloc.c:235)
==14954==    by 0x57AF9A1: g_free (gmem.c:172)
==14954==    by 0x57976B8: g_datalist_clear (gdataset.c:117)
==14954==    by 0x4620E75: camel_url_free (camel-url.c:399)
==14954==    by 0x8058898: exchange_camel_urls_is_equal (exchange-config-listener.c:697)
==14954==    by 0x80583B5: account_changed (exchange-config-listener.c:516)
==14954==    by 0x5719BDC: g_cclosure_marshal_VOID__OBJECT (gmarshal.c:636)
==14954==    by 0x570BF76: g_type_class_meta_marshal (gclosure.c:567)
==14954==    by 0x570C5C9: g_closure_invoke (gclosure.c:490)
==14954==    by 0x571C542: signal_emit_unlocked_R (gsignal.c:2487)
==14954==    by 0x571DC49: g_signal_emit_valist (gsignal.c:2208)
==14954==    by 0x571DFBD: g_signal_emit (gsignal.c:2252)
==14954==  Address 0x5D0B6B0 is 0 bytes inside a block of size 10 free'd
==14954==    at 0x401BF57: free (vg_replace_malloc.c:235)
==14954==    by 0x57AF9A1: g_free (gmem.c:172)
==14954==    by 0x805886B: exchange_camel_urls_is_equal (exchange-config-listener.c:694)
==14954==    by 0x80583B5: account_changed (exchange-config-listener.c:516)
==14954==    by 0x5719BDC: g_cclosure_marshal_VOID__OBJECT (gmarshal.c:636)
==14954==    by 0x570BF76: g_type_class_meta_marshal (gclosure.c:567)
==14954==    by 0x570C5C9: g_closure_invoke (gclosure.c:490)
==14954==    by 0x571C542: signal_emit_unlocked_R (gsignal.c:2487)
==14954==    by 0x571DC49: g_signal_emit_valist (gsignal.c:2208)
==14954==    by 0x571DFBD: g_signal_emit (gsignal.c:2252)
==14954==    by 0x486251C: gconf_accounts_changed (e-account-list.c:152)
==14954==    by 0x5698FD4: notify_listeners_callback (gconf-client.c:2368)