If you are adding a new account, select the type of account to add and click Next.
In the <account type> Settings dialog box, set the options appropriate for the type of account you are adding or modifying, such as account name, user name, mail server, and e-mail address. Click More Settings for additional configuration options. Click Finish when you are done.
To ensure that e-mail services do not overlap, Outlook might not allow you to add more than one new account for the same type of service. For example, Outlook verifies that all POP accounts have unique names. The following table shows how Outlook determines whether a new account of the same type as an existing account can be added to the Setup customization file.
| Account type | Add duplicate account? | Data used to determine whether conflict exists |
| POP3 | No | Account name |
| IMAP | No | Account name |
| Hotmail or HTTP | No | Account name |
| PST | No | File name and path to PST file |
| Unicode PST | No | File name and path to Unicode PST file |
| Outlook Address Book | Yes | Existence of account |
| Personal Address Book | Yes | Existence of account |
| LDAP | No | Account name |
| Exchange | Yes | Existence of provider |