Tcl

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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Tcl


load ./chilkat.dll

set 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 [new_CkEmail]

set success [CkEmail_LoadEml $email "qa_data/eml/dsn_bounce.eml"]
if {$success == 0} then {
    puts [CkEmail_lastErrorText $email]
    delete_CkEmail $email
    exit
}

if {[CkEmail_IsMultipartReport $email] == 1} then {
    puts "This email is a multipart/report (e.g. a bounce or read receipt)."
} else {
    puts "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.

delete_CkEmail $email