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SmtpResponse.ServiceUnavailable field

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The ServiceUnavailable field gets an instance of the SmtpResponse structure that represents a 421 Service not available, closing transmission channel response.

Namespace:  Microsoft.Exchange.Data.Transport.Smtp
Assembly:  Microsoft.Exchange.Data.Transport (in Microsoft.Exchange.Data.Transport.dll)

Syntax

'Declaration
Public Shared ReadOnly ServiceUnavailable As SmtpResponse
'Usage
Dim value As SmtpResponse

value = SmtpResponse.ServiceUnavailable

public static readonly SmtpResponse ServiceUnavailable

See also

Reference

SmtpResponse structure

SmtpResponse members

Microsoft.Exchange.Data.Transport.Smtp namespace