Smtp |
public override void Authenticate( SaslMechanism mechanism, CancellationToken cancellationToken = default )
| Exception | Condition |
|---|---|
| ArgumentNullException | mechanism is . |
| ServiceNotConnectedException | The SmtpClient is not connected. |
| InvalidOperationException | The SmtpClient is already authenticated. |
| NotSupportedException | The SMTP server does not support authentication. |
| OperationCanceledException | The operation was canceled via the cancellation token. |
| AuthenticationException | Authentication using the supplied credentials has failed. |
| SaslException | A SASL authentication error occurred. |
| IOException | An I/O error occurred. |
| SmtpCommandException | The SMTP command failed. |
| SmtpProtocolException | An SMTP protocol error occurred. |
Authenticates using the specified SASL mechanism.
For a list of available SASL authentication mechanisms supported by the server, check the AuthenticationMechanisms property after the service has been connected.