At the moment it is possible to create new users with invalid mail addresses. I pasted the output of my test at http://paste.openstack.org/show/456642/. (the listing of invalid mail addresses is available at http://codefool.tumblr.com/post/15288874550/list-of-valid-and-invalid-email-addresses). Is it intended that addresses are not be validated? Does it makes sense to validate addresses (e.g. with https://github.com/mailgun/flanker)? Christian. -- Christian Berendt Cloud Solution Architect Mail: berendt at b1-systems.de B1 Systems GmbH Osterfeldstraße 7 / 85088 Vohburg / http://www.b1-systems.de GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537