diff -up evolution-mapi-3.12.10/src/addressbook/e-book-backend-mapi.c.book-recognize-offline evolution-mapi-3.12.10/src/addressbook/e-book-backend-mapi.c
--- evolution-mapi-3.12.10/src/addressbook/e-book-backend-mapi.c.book-recognize-offline	2014-10-14 14:42:49.000000000 +0200
+++ evolution-mapi-3.12.10/src/addressbook/e-book-backend-mapi.c	2016-08-16 17:33:31.513852020 +0200
@@ -54,7 +54,6 @@ struct _EBookBackendMAPIPrivate
 	GRecMutex conn_lock;
 	EMapiConnection *conn;
 	gchar *book_uid;
-	gboolean marked_for_offline;
 
 	GThread *update_cache_thread;
 	GCancellable *update_cache;
@@ -415,7 +414,7 @@ ebbm_connect_user (EBookBackendMAPI *ebm
 
 		ebbm_notify_connection_status (ebma, TRUE);
 
-		if (!g_cancellable_is_cancelled (cancellable) && priv->marked_for_offline) {
+		if (!g_cancellable_is_cancelled (cancellable) && e_book_backend_mapi_is_marked_for_offline (ebma)) {
 			ebbm_maybe_invoke_cache_update (ebma);
 		}
 	}
@@ -484,16 +483,12 @@ ebbm_open (EBookBackendMAPI *ebma,
 {
 	EBookBackendMAPIPrivate *priv = ebma->priv;
 	ESource *source = e_backend_get_source (E_BACKEND (ebma));
-	ESourceOffline *offline_extension;
 	const gchar *cache_dir;
 	GError *error = NULL;
 
 	if (e_book_backend_is_opened (E_BOOK_BACKEND (ebma)))
 		return;
 
-	offline_extension = e_source_get_extension (source, E_SOURCE_EXTENSION_OFFLINE);
-	priv->marked_for_offline = e_source_offline_get_stay_synchronized (offline_extension);
-
 	if (priv->book_uid)
 		g_free (priv->book_uid);
 	priv->book_uid = e_source_dup_uid (source);
@@ -519,7 +514,7 @@ ebbm_open (EBookBackendMAPI *ebma,
 
 	/* Either we are in Online mode or this is marked for offline */
 	if (!e_backend_get_online (E_BACKEND (ebma)) &&
-	    !priv->marked_for_offline) {
+	    !e_book_backend_mapi_is_marked_for_offline (ebma)) {
 		g_propagate_error (perror, EDB_ERROR (OFFLINE_UNAVAILABLE));
 		return;
 	}
@@ -742,7 +737,7 @@ ebbm_book_view_thread (gpointer data)
 		if (ebmac && ebmac->op_book_view_thread)
 			ebmac->op_book_view_thread (bvtd->ebma, bvtd->book_view, priv->update_cache, &error);
 
-		if (priv->marked_for_offline) {
+		if (e_book_backend_mapi_is_marked_for_offline (bvtd->ebma)) {
 			e_book_backend_mapi_update_view_by_cache (bvtd->ebma, bvtd->book_view, &error);
 
 			ebbm_maybe_invoke_cache_update (bvtd->ebma);
@@ -1505,10 +1500,17 @@ e_book_backend_mapi_book_view_is_running
 gboolean
 e_book_backend_mapi_is_marked_for_offline (EBookBackendMAPI *ebma)
 {
+	ESource *source;
+	ESourceOffline *offline_extension;
+
 	g_return_val_if_fail (E_IS_BOOK_BACKEND_MAPI (ebma), FALSE);
 	g_return_val_if_fail (ebma->priv != NULL, FALSE);
 
-	return ebma->priv->marked_for_offline;
+	source = e_backend_get_source (E_BACKEND (ebma));
+
+	offline_extension = e_source_get_extension (source, E_SOURCE_EXTENSION_OFFLINE);
+
+	return e_source_offline_get_stay_synchronized (offline_extension);
 }
 
 void