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Attach an Email to Another Email

See more Email Object Examples

Demonstrates the Chilkat Email.AttachEmail method, which attaches a copy of another email to this email object. The attached email is encapsulated in a message/rfc822 subpart. Because a copy is attached, later changes to the source email do not affect the embedded message. This example attaches one email to another.

Background: "Forward as attachment" produces exactly this structure: the original message is embedded whole as a message/rfc822 part rather than quoted into the body. This preserves the original's headers and formatting intact, which matters for forwarding to a mailbox that will re-parse it, or for reporting spam/phishing with the original evidence attached. Such parts are counted by NumAttachedMessages.

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Local $bSuccess = False

;  Demonstrates the AttachEmail method, which attaches a copy of another email to this email
;  object.  The attached email is encapsulated in a message/rfc822 subpart.

$oInnerEmail = ObjCreate("Chilkat.Email")
$oInnerEmail.Subject = "Original message"
$oInnerEmail.From = "alice@example.com"
$oInnerEmail.Body = "This is the original message being forwarded."

$oEmail = ObjCreate("Chilkat.Email")
$oEmail.Subject = "FW: Original message"
$oEmail.From = "bob@example.com"
$oEmail.Body = "See the attached original email."

;  Attach a copy of the inner email as a message/rfc822 part.

$bSuccess = $oEmail.AttachEmail($oInnerEmail)
If ($bSuccess = False) Then
    ConsoleWrite($oEmail.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("NumAttachedMessages = " & $oEmail.NumAttachedMessages & @CRLF)