Xbase++

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.

Chilkat Xbase++ Downloads

Download Chilkat for Xbase++

Xbase++

LOCAL nSuccess
LOCAL oEmail

nSuccess := 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).

oEmail := CreateObject("Chilkat.Email")

nSuccess := oEmail:LoadEml("qa_data/eml/dsn_bounce.eml")
IF (nSuccess == 0)
    ? oEmail:LastErrorText
    oEmail:destroy()
    RETURN
ENDIF

IF (oEmail:IsMultipartReport() == 1)
    ? "This email is a multipart/report (e.g. a bounce or read receipt)."
ELSE
    ? "This email is not a multipart/report."
ENDIF

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

oEmail:destroy()