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MimeKit

SmtpClientNoOpAsync Method

Asynchronously ping the SMTP server to keep the connection alive.

Namespace:  MailKit.Net.Smtp
Assembly:  MailKit (in MailKit.dll) Version: 2.3.0
Syntax
C#
public override Task NoOpAsync(
	CancellationToken cancellationToken = null
)

Parameters

cancellationToken (Optional)
Type: System.ThreadingCancellationToken
The cancellation token.

Return Value

Type: Task
An asynchronous task context.

Implements

IMailServiceNoOpAsync(CancellationToken)
Exceptions
ExceptionCondition
ObjectDisposedException The SmtpClient has been disposed.
ServiceNotConnectedException The SmtpClient is not connected.
OperationCanceledException The operation was canceled.
IOException An I/O error occurred.
SmtpCommandException The SMTP command failed.
SmtpProtocolException An SMTP protocol error occurred.
Remarks
Mail servers, if left idle for too long, will automatically drop the connection.
See Also