The Microsoft.Exchange.Data.Transport.Smtp namespace contains types that support the extension of the Microsoft Exchange Server 2007 transport SMTP behavior.

Classes

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Class	Description
AuthCommandEventArgs	The AuthCommandEventArgs class provides data for the OnAuthCommand event.
ConnectEventArgs	The ConnectEventArgs class provides data for the OnConnect events.
ConnectEventSource	Classes derived from the ConnectEventSource class provide data for the OnConnect event.
DataCommandEventArgs	The DataCommandEventArgs class provides data for the OnDataCommand events.
DisconnectEventArgs	The DisconnectEventArgs class provides data for the OnDisconnect event.
DisconnectEventSource	Classes derived from the DisconnectEventSource class provide data for the OnDisconnect event.
EhloCommandEventArgs	The EhloCommandEventArgs class provides data for the OnEhloCommand event.
EndOfAuthenticationEventArgs	The EndOfAuthenticationEventArgs class provides data for the OnEndOfAuthentication event.
EndOfAuthenticationEventSource	Classes derived from the EndOfAuthenticationEventSource class provide data for the OnEndOfAuthentication events.
EndOfDataEventArgs	The EndOfDataEventArgs class provides data for the OnEndOfData event.
EndOfHeadersEventArgs	The EndOfHeadersEventArgs class provides data for the OnEndOfHeaders event.
HeloCommandEventArgs	The HeloCommandEventArgs class provides data for the OnHeloCommand event.
HelpCommandEventArgs	The HelpCommandEventArgs class provides data for the OnHelpCommand event.
MailCommandEventArgs	The MailCommandEventArgs class provides data for the OnMailCommand event.
NoopCommandEventArgs	The NoopCommandEventArgs class provides data to the OnNoopCommand event.
RcptCommandEventArgs	The RcptCommandEventArgs class provides data for the OnRcptCommand event.
ReceiveCommandEventArgs	Classes that derive from the ReceiveCommandEventArgs class provide data for the Microsoft.Exchange.Data.Transport.Smtp event.
ReceiveCommandEventSource	The ReceiveCommandEventSource class is the base class for all Microsoft.Exchange.Data.Transport.Smtp event source classes.
ReceiveEventArgs	Classes that derive from the ReceiveEventArgs class provide data for the Microsoft.Exchange.Data.Transport.Smtp events.
ReceiveEventSource	The ReceiveEventSource class is the base class for all Microsoft.Exchange.Data.Transport.Smtp event source classes.
ReceiveMessageEventSource	The ReceiveMessageEventSource class is the base class for classes passed to the Microsoft.Exchange.Data.Transport.Smtp receive events.
RejectEventArgs	The RejectEventArgs class provides data for the OnReject event.
RejectEventSource	Classes derived from the RejectEventSource class provide data for the OnReject event.
RsetCommandEventArgs	The RsetCommandEventArgs class provides data for the OnRsetCommand event.
SmtpReceiveAgent	The SmtpReceiveAgent class is the base class for agent classes that use Simple Mail Transfer Protocol (SMTP) receive events.
SmtpReceiveAgentFactory	The SmtpReceiveAgentFactory class produces instances of the SmtpReceiveAgent class that are used to extend Simple Mail Transfer Protocol (SMTP) transport behavior.
SmtpSession	The SmtpSession class is the base class for classes that represent a Simple Mail Transfer Protocol (SMTP) session.

Structures

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Structure	Description
SmtpResponse	The SmtpResponse structure provides properties and methods for responding to Simple Mail Transfer Protocol (SMTP) requests.

Delegates

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Delegate	Description
AuthCommandEventHandler	The AuthCommandEventHandler delegate represents the method that will handle the OnAuthCommand event of a class that derives from the SmtpReceiveAgent class.
ConnectEventHandler	The ConnectEventHandler delegate represents the method that will handle the OnConnect event of a class that derives from the SmtpReceiveAgent class.
DataCommandEventHandler	The DataCommandEventHandler delegate represents the method that will handle the OnDataCommand event of a class that derives from the SmtpReceiveAgent class.
DisconnectEventHandler	The DisconnectEventHandler delegate represents the method that will handle the OnDisconnect event of a class derived from the SmtpReceiveAgent class.
EhloCommandEventHandler	The EhloCommandEventHandler delegate represents the method that will handle the OnEhloCommand event of a class that derives from the SmtpReceiveAgent class.
EndOfAuthenticationEventHandler	The EndOfAuthenticationEventHandler delegate represents the method that will handle the OnEndOfAuthentication event in classes derived from the SmtpReceiveAgent class.
EndOfDataEventHandler	The EndOfDataEventHandler delegate represents the method that will handle the OnEndOfData event of a class that derives from the SmtpReceiveAgent class.
EndOfHeadersEventHandler	The EndOfHeadersEventHandler delegate represents the method that will handle the OnEndOfHeaders event in a class that derives from the SmtpReceiveAgent class.
HeloCommandEventHandler	The HeloCommandEventHandler delegate represents the method that will handle the OnHeloCommand event in classes that derive from the SmtpReceiveAgent class.
HelpCommandEventHandler	The HelpCommandEventHandler delegate represents the method that will handle the OnHelpCommand event in classes that derive from the SmtpReceiveAgent class.
MailCommandEventHandler	The MailCommandEventHandler delegate represents the method that will handle the OnMailCommand event in classes that derive from the SmtpReceiveAgent class.
NoopCommandEventHandler	The NoopCommandEventHandler delegate represents the method that will handle the OnNoopCommand event in classes that derive from the SmtpReceiveAgent class.
RcptCommandEventHandler	The RcptCommandEventHandler delegate represents the method that will handle the OnRcptCommand event in a class that derives from the SmtpReceiveAgent class.
RejectEventHandler	The RejectEventHandler delegate represents the method that will handle the OnReject event in a class that derives from the SmtpReceiveAgent class.
RsetCommandEventHandler	The RsetCommandEventHandler delegate represents the method that will handle the OnRsetCommand event in classes that derive from the SmtpReceiveAgent class.

Enumerations

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Enumeration	Description
AuthenticationSource	The AuthenticationSource enumeration indicates the type of authentication that was used for the connection to the remote server.
BodyType	The BodyType enumeration specifies the type of contents that the body of a message contains.
DisconnectReason	The DisconnectReason enumeration indicates why the OnDisconnect event fired.
ParsingStatus	The ParsingStatus enumeration specifies values to return when parsing a Simple Mail Transfer Protocol (SMTP) command.
SmtpResponseType	The SmtpResponseType enumeration indicates the status returned from a Simple Mail Transfer Protocol (SMTP) request.