Classic ASP

Check Whether an Email Is a multipart/report

Demonstrates the Chilkat Email.IsMultipartReport method, which returns true when the top-level message structure is a multipart/report (such as a bounce/DSN or a read receipt/MDN). This example loads an email and reports whether it is a multipart/report.

Background: Automated mail — delivery failures and read receipts — arrives wrapped in the multipart/report structure, which carries machine-readable report parts. Detecting it with IsMultipartReport is the first step in a bounce-handling pipeline: once you know a message is a report, you can pull its parts with GetReport or read delivery fields with GetDeliveryStatusInfo to act on failures automatically.

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Classic ASP

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

'  Demonstrates the IsMultipartReport method, which returns true if the top-level message
'  structure is a multipart/report (such as a bounce / DSN or a read receipt / MDN).

set email = Server.CreateObject("Chilkat.Email")

success = email.LoadEml("qa_data/eml/dsn_bounce.eml")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( email.LastErrorText) & "</pre>"
    Response.End
End If

If (email.IsMultipartReport() = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( "This email is a multipart/report (e.g. a bounce or read receipt).") & "</pre>"
Else
    Response.Write "<pre>" & Server.HTMLEncode( "This email is not a multipart/report.") & "</pre>"
End If

'  Note: The path "qa_data/..." is a relative local filesystem path,
'  relative to the current working directory of the running application.

%>
</body>
</html>