Dynamically mapping users to groups

Methods and systems for authenticating users and assigning authenticated users to groups are provided. A method receives a user credential and email address. The method forwards an authentication request including the email address and credential to a remote authentication provider. Based in part on the presence of a full user name in a received response, the method determines that the user is authenticated. Another method extracts a domain name from a received email address of an authenticated user. In response to determining that the domain name is associated with a group, the method assigns the user to the group. A system includes memory with instructions for assigning an authenticated user to a group. The system receives the user's email address and extracts a domain name from the email address. In response to determining that the domain name is associated with a group, the system assigns the user to the group.