Postini has been the world's leading email security and mangement platform for many years. Since Postini was acquired by Google, Postini's popularity has grown even more.
Postini's benefit is optimized when organizations enable Single Sign On, os SSO, function for Postini services. SSO for Postini ensures heightened security, and easy and convenient user access.
In order to enable Single Sign On, a SAML 1.1 product is needed in order to provide support for that required standards-based security protocol.