Until samba 4.5 we used to lower the tombstoneLifetime to two days. According to Marc Muehlfeld <mmuehlfeld@samba.org> (and our tests) this feature is currently broken. https://wiki.samba.org/index.php?title=Special:Log&type=delete&page=The+Active+Directory+Recycle+Bin Can you please fix this or provide a workaround?