| User type | Assign for this type of user | Allows you to... |
| Person | An individual user; this includes a user on a server workstation. | Control access for an individual user. |
| Server | A single server; this includes a server console, and server workstation. | Prevent someone from accessing the database from a Notes workstation using the server ID. |
| Server Group | A group of servers. | Identify a group of servers that will host replicas of the database. |
| Person Group | A group of individual users. | Grant the same access to all users in a group without listing each user name in the access control list (ACL). |
| Mixed Group | A group of servers and individual users. | Grant the same access to a group of users and servers |
| Unspecified | In the Advanced Access Control List window, click Lookup User Types for 'Unspecified Users.' Notes looks up an unspecified user's type in the address book. |  |
