PowerBuilder

Get Delivery-Status Info as JSON

Demonstrates the Chilkat Email.GetDsnInfo method, which — when IsMultipartReport indicates the email is a multipart/report — obtains the delivery-status information as a JsonObject. This example loads a bounce message, confirms it is a report, and prints the extracted DSN details as JSON.

Background: A bounce (DSN) carries its key facts — which recipient failed, the status code, the reporting server — in a machine-readable message/delivery-status part. Rather than parsing those raw fields yourself, GetDsnInfo gathers them into a structured JSON document you can query with the JsonObject API, making it easy to automate bounce handling and prune failed addresses from a mailing list.

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integer li_rc
integer li_Success
oleobject loo_Email
oleobject loo_Json

li_Success = 0

//  Demonstrates the GetDsnInfo method, which, for a multipart/report email, obtains the
//  delivery-status information as a JSON object.

loo_Email = create oleobject
li_rc = loo_Email.ConnectToNewObject("Chilkat.Email")
if li_rc < 0 then
    destroy loo_Email
    MessageBox("Error","Connecting to COM object failed")
    return
end if

li_Success = loo_Email.LoadEml("qa_data/eml/dsn_bounce.eml")
if li_Success = 0 then
    Write-Debug loo_Email.LastErrorText
    destroy loo_Email
    return
end if

//  Only meaningful for a multipart/report email.
if loo_Email.IsMultipartReport() = 1 then
    loo_Json = create oleobject
    li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

    li_Success = loo_Email.GetDsnInfo(loo_Json)
    if li_Success = 1 then
        Write-Debug loo_Json.Emit()
    end if

else
    Write-Debug "This email is not a multipart/report."
end if

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


destroy loo_Email
destroy loo_Json