diff --git a/root/etc/e-smith/templates/etc/sogo/sogo.conf/16memcached b/root/etc/e-smith/templates/etc/sogo/sogo.conf/16memcached
index 11c2038..796a836 100644
--- a/root/etc/e-smith/templates/etc/sogo/sogo.conf/16memcached
+++ b/root/etc/e-smith/templates/etc/sogo/sogo.conf/16memcached
@@ -1,2 +1,2 @@
         SOGoMemcachedHost = "/var/run/sogo/memcached.sock";
-        SOGoCacheCleanupInterval = 7200;
+        SOGoCacheCleanupInterval = { $sogod{CacheCleanupInterval} || ($sogod{Authentication} || 'cas') ne 'internal' ? '7200' : '300' };