Gets or sets the Service Provider Name (SPN) to use for authentication when using extended protection.
Assembly: System (in System.dll)
The SmtpClient can then provide extended protection to ensure that credential challenge responses contain service specific information (a SPN) and, if necessary, channel specific information (a channel binding token or CBT). With this information in the credential exchanges, services are able to better protect against malicious use of credential challenge responses that might have been improperly obtained.property is used with integrated Windows authentication when an application is using extended protection. The
The default value for this property can also be set in a machine or application configuration file. Any changes made to theproperty override the configuration file settings.
Available since 2.0
Integrated Windows Authentication with Extended Protection
<mailSettings> Element (Network Settings)
<smtp> Element (Network Settings)
<network> Element (Network Settings)