CkPython

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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import sys
import chilkat

success = False

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

email = chilkat.CkEmail()

success = email.LoadEml("qa_data/eml/dsn_bounce.eml")
if (success == False):
    print(email.lastErrorText())
    sys.exit()

#  Only meaningful for a multipart/report email.
if (email.IsMultipartReport() == True):
    json = chilkat.CkJsonObject()
    success = email.GetDsnInfo(json)
    if (success == True):
        print(json.emit())

else:
    print("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.