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Auto-Generate or Explicitly Specify the Message-ID Email Header

Demonstrates how to auto-generate or explicitly specify the Message-ID header field.

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AutoIt
Local $bSuccess = False

$oEmail = ObjCreate("Chilkat.Email")

$oEmail.Subject = "test"
$oEmail.Body = "test"
$oEmail.AddTo("Joe","joe@example1.com")
$oEmail.From = "mary@example2.com"

$oMailman = ObjCreate("Chilkat.MailMan")

; When the mailman sends email, it renders the email to be sent,
; and then sends the rendered MIME.

; Instead of actually sending the email, this example will render
; to MIME so we can see what would be sent..

; We can explicitly set the Message-ID like this:
$oMailman.AutoGenMessageId = False
$oEmail.AddHeaderField "Message-ID","<xyz123@abc>"

Local $sMimeStr = $oMailman.RenderToMime($oEmail)
ConsoleWrite($sMimeStr & @CRLF)

; This is what we get:

; MIME-Version: 1.0
; Date: Mon, 20 Jul 2020 17:20:09 -0500
; Message-ID: <xyz123@abc>
; Content-Type: text/plain; charset=us-ascii; format=flowed
; Content-Transfer-Encoding: 7bit
; X-Priority: 3 (Normal)
; Subject: test
; To: Joe <joe@example1.com>
; From: mary@example2.com
; 
; test

ConsoleWrite("--------" & @CRLF)

; If we auto-generate...
$oMailman.AutoGenMessageId = True
$sMimeStr = $oMailman.RenderToMime($oEmail)
ConsoleWrite($sMimeStr & @CRLF)

; We get this:

; MIME-Version: 1.0
; Date: Mon, 20 Jul 2020 17:21:20 -0500
; Message-ID: <04EDE096BBFE484967F6398A973B0FCF6EA09A44@CHILKATSLICE>
; Content-Type: text/plain; charset=us-ascii; format=flowed
; Content-Transfer-Encoding: 7bit
; X-Priority: 3 (Normal)
; Subject: test
; To: Joe <joe@example1.com>
; From: mary@example2.com
; 
; test