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Creating a Message

Topic Last Modified: 2006-06-12

To build a new message, you must first create an instance of the Message Component Object Model (COM) class, as shown in the following example:

Example

Visual Basic

' Reference to Microsoft ActiveX Data Objects 2.5 Library
' Reference to Microsoft CDO for Exchange 2000 Server Library
Dim iMsg as new CDO.Message

C++, IDL

#import "c:\program files\common files\system\ado\msado15.dll" no_namespace
#import "c:\program files\common files\microsoft shared\cdo\cdoex.dll" no_namespace
// ...
MessagePtr iMsg(__uuidof(Message));

VBScript

Dim iMsg
Set iMsg = CreateObject("CDO.Message")

You can create and send or post a simple message by using only the IMessage interface.

  • To send a SMTP message, you must at least set the To and From properties on the IMessage interface.
  • To post an Network News Transfer Protocol (NNTP) message, you must at least set the IMessage.Newsgroups and IMessage.Subject properties.
  • To send or post multiple messages efficiently, create a single Message object and reuse it for each message.
  • To send individual messages with the same content to several recipients, change the address and call the IMessage.Send or IMessage.Post method for each message.
  • To send different content in each message, use the IBodyParts.DeleteAll method to clear all of the body parts associated with a Message object.