Configure SMTP Outbound Security
You can configure the SMTP connector to provide the authentication credentials required by the remote domain. There are two types of authentication available: Basic (clear text) and Integrated Windows authentication. With Basic authentication, the account name and password of the server to which you are connecting is transmitted in clear text. The Integrated Windows authentication option requires a Windows account name. You can also disable authentication, which is the default option.
The outbound security you select on the SMTP connector overrides the SMTP virtual server authentication setting on the Access tab. The following table describes several configuration examples
|SMTP Connector Transmissions||Authentication Option|
|Messages are commonly sent to multiple addresses.||Disable authentication for the SMTP connector. If attempts to deliver messages to an address fail because of authentication requirements, add a remote domain for the address. Then enable authentication for the domain at the same level required by the server.|
|Messages are commonly sent to one address, which requires authentication.||Determine what level of authentication is required to connect and enable authentication for the SMTP connector using the same level of authentication. If you then want to send messages to other addresses, set up remote domains and set different authentication options. If you use this option, it is likely that the account name used is the one that identifies the computer set up as the smart host.|
To configure SMTP outbound security:
If you do have routing groups defined:
Note If the remote domain does not support TLS encryption, all messages are returned with a non-delivery report (NDR).
Related TopicsConfigure SMTP Delivery Options Choose Authentication Methods