PowerShell

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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Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

#  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).

$email = New-Object Chilkat.Email

$success = $email.LoadEml("qa_data/eml/dsn_bounce.eml")
if ($success -eq $false) {
    $($email.LastErrorText)
    exit
}

if ($email.IsMultipartReport() -eq $true) {
    $("This email is a multipart/report (e.g. a bounce or read receipt).")
}
else {
    $("This email is not a multipart/report.")
}

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