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Remove a MIME Header Field

Demonstrates the Chilkat Mime.RemoveHeaderField method, which removes header fields whose name matches case-insensitively. The first argument is the field name and the second (bAllOccurrences) selects whether to remove all matches or only the first. It is a void method.

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own file.

Background: Stripping headers is common when reprocessing a message — removing spam-scoring X- headers, clearing an old Content-Length before re-serializing, or deleting routing headers before forwarding. The all-occurrences flag matters for headers that can repeat: pass true to purge every instance, or false to drop just the first.

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Local $bSuccess = False

$oMime = ObjCreate("Chilkat.Mime")
$bSuccess = $oMime.LoadMimeFile("qa_data/message.eml")
If ($bSuccess = False) Then
    ConsoleWrite($oMime.LastErrorText & @CRLF)
    Exit
EndIf

;  Remove header fields whose name matches (case-insensitively).  The 1st argument is the field
;  name and the 2nd (bAllOccurrences) selects whether to remove all matches or only the first.
;  RemoveHeaderField is a void method.

;  Remove every X-Spam-Status header.
Local $bAllOccurrences = True
$oMime.RemoveHeaderField "X-Spam-Status",$bAllOccurrences

ConsoleWrite("Removed the header field(s)." & @CRLF)