Mail
Asynchronously ping the mail server to keep the connection alive.
Definition
Namespace: MailKit
Assembly: MailKit (in MailKit.dll) Version: 5.0.0
An asynchronous task context.
Assembly: MailKit (in MailKit.dll) Version: 5.0.0
C#
public abstract Task NoOpAsync(
CancellationToken cancellationToken = default
)Parameters
- cancellationToken CancellationToken (Optional)
- The cancellation token.
Return Value
TaskAn asynchronous task context.
Implements
IMailServiceNoOpAsync(CancellationToken)Remarks
Mail servers, if left idle for too long, will automatically drop the connection.
Exceptions
| ObjectDisposedException | The MailService has been disposed. |
| InvalidOperationException |
The MailService is not connected. -or- The MailService is not authenticated. |
| OperationCanceledException | The operation was canceled via the cancellation token. |
| IOException | An I/O error occurred. |
| CommandException | The command was rejected by the mail server. |
| ProtocolException | The server responded with an unexpected token. |