I have a strange problem with Exchange 2007. I have discovered that all staff can use the "Send As" capability. I have checked the users mailbox's in the Exhnage Management Console and none have the permissions set under the "Manage Send As Permission" section but they can certainly do it. Does anyone know how this can be? If I run the "Manage Send As Permission" wizard there are definitely no users listed with permission to send email on behalf of another user but they can nonetheless do it. Any ideas? Have I missed a setting somewhere?