Lua

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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Lua

local chilkat = require("chilkat")

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

local email = chilkat.Email.new()

local success = email:load_eml("qa_data/eml/dsn_bounce.eml")
if not success then
    print(email.last_error_text)
    return
end

-- Only meaningful for a multipart/report email.
if email:is_multipart_report() then
    local json = chilkat.JsonObject.new()
    success = email:get_dsn_info(json)
    if success then
        print(json:emit())
    end
else
    print("This email is not a multipart/report.")
end

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