Classic ASP

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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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

set mime = Server.CreateObject("Chilkat.Mime")
success = mime.LoadMimeFile("qa_data/message.eml")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( mime.LastErrorText) & "</pre>"
    Response.End
End If

'  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.
bAllOccurrences = 1
mime.RemoveHeaderField "X-Spam-Status",bAllOccurrences

Response.Write "<pre>" & Server.HTMLEncode( "Removed the header field(s).") & "</pre>"

%>
</body>
</html>