AutoIt

Get a Header Attribute of an Attached Message

Demonstrates the Chilkat Email.GetAttachedMessageAttr method, which returns a header-field attribute value for the Nth attached (embedded) email. The first argument is the zero-based attached-message index, the second is the header field name, and the third is the attribute name. This example attaches an email and reads the filename attribute of its Content-Disposition header.

Background: MIME header fields can carry named attributes (parameters) after the main value — for example Content-Disposition: attachment; filename="report.eml", where filename is an attribute. Rather than parsing the raw header yourself, this method extracts a single named attribute from a chosen header of a specific embedded message, which is convenient when a message forwards other emails as nested message/rfc822 parts.

Chilkat AutoIt Downloads

Download Chilkat for AutoIt

AutoIt

Local $bSuccess = False

;  Demonstrates the GetAttachedMessageAttr method, which returns a header-field attribute
;  value for the Nth attached (embedded) email.  The first argument is the zero-based
;  attached-message index, the second is the header field name, and the third is the attribute name.

;  Build an inner email to attach.
$oInnerEmail = ObjCreate("Chilkat.Email")
$oInnerEmail.Subject = "Embedded message"
$oInnerEmail.From = "alice@example.com"
$oInnerEmail.AddTo("Bob","bob@example.com")

;  Attach it to an outer email as a message/rfc822 part.
$oEmail = ObjCreate("Chilkat.Email")
$oEmail.Subject = "Has an attached message"
$bSuccess = $oEmail.AttachEmail($oInnerEmail)
If ($bSuccess = False) Then
    ConsoleWrite($oEmail.LastErrorText & @CRLF)
    Exit
EndIf

;  Get the "filename" attribute of the "Content-Disposition" header of the first
;  attached message (index 0).
Local $sFname = $oEmail.GetAttachedMessageAttr(0,"Content-Disposition","filename")
ConsoleWrite("Attached message filename attribute: " & $sFname & @CRLF)