AuthenticationSource enumeration
The AuthenticationSource enumeration indicates the type of authentication that was used for the connection to the remote server.
Namespace: Microsoft.Exchange.Data.Transport.Smtp
Assembly: Microsoft.Exchange.Data.Transport (in Microsoft.Exchange.Data.Transport.dll)
Syntax
'Declaration
Public Enumeration AuthenticationSource
'Usage
Dim instance As AuthenticationSource
public enum AuthenticationSource
Members
| Member name | Description | |
|---|---|---|
| Anonymous | The authentication type could not be determined. This usually means that the connection is from the Internet. | |
| Organization | The remote server authenticated as a server in the organization. | |
| Partner | The remote server authenticated as a delegated partner. |
Remarks
Transport agents can use the AuthenticationSource enumeration to determine whether the remote server is an anonymous, an interorganization, or a partner server.