Authentication Settings
Use Default Credentials
Determines whether the connection to the SMTP server should use the service credentials, or scan profile credentials if specified.
Use Specific Credentials
Determines whether to use the specified credentials.
Username
The username to use for the connection.
Domain
The domain name to use for the connection. If specifying an email address for the username, the domain field can be left blank.
Password
The password to use for the connection.