SMTPMESSAGE2 structure

[SMTPMESSAGE2 is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in subsequent versions.]

Extends an SMTPMESSAGE structure to add Delivery Status Notification (DSN) (RFC 1891) support.

Syntax

typedef struct tagSMTPMESSAGE2 {
  SMTPMESSAGE smtpMsg;
  LPSTR       pszDSNENVID;
  DSNRET      dsnRet;
  DWORD       dwReserved;
  DWORD       dwReserved2;
} SMTPMESSAGE2, *LPSMTPMESSAGE2;

Members

smtpMsg

Type: SMTPMESSAGE

Contains the SMTPMESSAGE structure that contains the message.

pszDSNENVID

Type: LPSTR

Contains an LPSTR that contains the value for the envelope ID of the message so that the return message can be matched against the original message (the ENVID parameter of the MAIL command).

dsnRet

Type: DSNRET

Contains a DSNRET value that indicates whether to return the full message or just the headers for a bounced message (the RET parameter of the MAIL command).

dwReserved

Type: DWORD

Do not use.

dwReserved2

Type: DWORD

Do not use.

Remarks

To receive a DSN the Simple Mail Transport Protocol (SMTP) server must implement RFC 1891 and the SMTP transport must be initialized with an EHLO command.

Requirements

Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Product	Outlook Express 6.0
Header	Imnxport.h
IDL	Imnxport.idl