Topic Last Modified: 2007-05-16
Use the Outbound Security dialog box to configure the authentication method and credentials that are used by the SMTP virtual server to authenticate to a receiving server. Three types of authentication are available:
- Anonymous
- Basic (clear text)
- Integrated Windows Authentication
Anonymous access, the default option, requires no authentication. You can also require that outbound sessions are encrypted by using Transport Layer Security (TLS). These options can be set for all outgoing messages on the Outbound Security dialog box, and overridden for a specific remote domain on the Domain Properties tab. This enables you to set the SMTP virtual server authentication and encryption level to handle most of the transmissions, while allowing exceptions for individual addresses.
The following options are available on the Outbound Security dialog box.
- Anonymous access
-
Use this option to disable authentication for outbound transmissions. This is the default option.
- Basic authentication
-
With the Basic authentication option, the account name and password of the server that you're connecting to are transmitted in clear text. This setting should match the receiving server's incoming authentication requirements. A user name and password are required for this option. Click Browse to select a user.
- Integrated Windows Authentication
-
Select this option to use Integrated Windows Authentication for authentication. This setting should match the receiving server's incoming authentication requirements. A Windows user account name and password are required for this option. Click Browse to select an account.
- TLS encryption
-
Select this check box to require that all outgoing messages are encrypted by using TLS.