diff -up evolution-data-server-3.12.11/camel/providers/imapx/camel-imapx-provider.c.disable-and-hide-qresync evolution-data-server-3.12.11/camel/providers/imapx/camel-imapx-provider.c
--- evolution-data-server-3.12.11/camel/providers/imapx/camel-imapx-provider.c.disable-and-hide-qresync	2016-05-18 18:14:23.267083514 +0200
+++ evolution-data-server-3.12.11/camel/providers/imapx/camel-imapx-provider.c	2016-05-18 18:15:01.458081843 +0200
@@ -40,8 +40,8 @@ CamelProviderConfEntry imapx_conf_entrie
 	  N_("C_heck for new messages in all folders"), "1" },
 	{ CAMEL_PROVIDER_CONF_CHECKBOX, "check-subscribed", NULL,
 	  N_("Ch_eck for new messages in subscribed folders"), "0" },
-	{ CAMEL_PROVIDER_CONF_CHECKBOX, "use-qresync", NULL,
-	  N_("Use _Quick Resync if the server supports it"), "0" },
+	/*{ CAMEL_PROVIDER_CONF_CHECKBOX, "use-qresync", NULL,
+	  N_("Use _Quick Resync if the server supports it"), "0" },*/
 	{ CAMEL_PROVIDER_CONF_CHECKBOX, "use-idle", NULL,
 	  N_("_Listen for server change notifications"), "0" },
 	{ CAMEL_PROVIDER_CONF_SECTION_END },
diff -up evolution-data-server-3.12.11/camel/providers/imapx/camel-imapx-server.c.disable-and-hide-qresync evolution-data-server-3.12.11/camel/providers/imapx/camel-imapx-server.c
--- evolution-data-server-3.12.11/camel/providers/imapx/camel-imapx-server.c.disable-and-hide-qresync	2016-05-18 18:14:39.322082812 +0200
+++ evolution-data-server-3.12.11/camel/providers/imapx/camel-imapx-server.c	2016-05-18 18:16:51.393077034 +0200
@@ -3151,7 +3151,7 @@ imapx_reconnect (CamelIMAPXServer *is,
 	mechanism = camel_network_settings_dup_auth_mechanism (
 		CAMEL_NETWORK_SETTINGS (settings));
 
-	use_qresync = camel_imapx_settings_get_use_qresync (CAMEL_IMAPX_SETTINGS (settings));
+	use_qresync = FALSE; /* camel_imapx_settings_get_use_qresync (CAMEL_IMAPX_SETTINGS (settings)); */
 	use_idle = camel_imapx_settings_get_use_idle (CAMEL_IMAPX_SETTINGS (settings));
 
 	g_object_unref (settings);