(Chilkat2-Python) Create DSN (Delivery Status Notification) Email

See more Email Object Examples

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS

import sys
import chilkat2

email = chilkat2.Email()

email.Subject = "Test"
email.From = "joe@example.com"
email.Body = "This is a test"
email.AddTo("","recipient@example.com")

print(email.GetMime())
print("")
print("-------------------------------------------------------------")
print("")

# This is the email we just created:

# MIME-Version: 1.0
# Date: Mon, 12 May 2025 11:13:15 -0500
# Message-ID: <917FA49F75544EF51948B0A52F403B925B51073F@SLICE>
# Content-Type: text/plain; charset=us-ascii; format=flowed
# Content-Transfer-Encoding: 7bit
# X-Priority: 3 (Normal)
# Subject: Test
# From: joe@example.com
# To: recipient@example.com
# 
# This is a test

# -----------------------------------------------------------------
# Convert the above email into a DSN (Delivery Status Notification)

xml = chilkat2.Xml()
xml.Tag = "DeliveryStatusFields"
xml.NewChild2("Final-Recipient","rfc822; recipient@example.com")
xml.NewChild2("Action","failed")
xml.NewChild2("Status","5.1.2")
xml.NewChild2("Diagnostic-Code","smtp; 550 5.1.2 Host unknown (Domain name not found)")
dtNow = chilkat2.CkDateTime()
dtNow.SetFromCurrentSystemTime()
xml.NewChild2("Last-Attempt-Date",dtNow.GetAsRfc822(True))

headerOnly = True
sbText = chilkat2.StringBuilder()
sbText.Append("This is an automatically generated Delivery Status Notification.\r\n\r\n")
sbText.Append("Delivery to the following recipient failed permanently:\r\n\r\n")
sbText.Append("    recipient@example.com\r\n\r\n")
sbText.Append("Technical details of permanent failure:\r\n")
sbText.Append("DNS Error: Domain name not found\r\n")

explain = sbText.GetAsString()

dsnEmail = chilkat2.Email()
success = email.ToDsn(explain,xml.GetXml(),headerOnly,dsnEmail)
if (success == False):
    print(email.LastErrorText)
    sys.exit()

print(dsnEmail.GetMime())

# Here's the MIME of the DNS email we just created:
# -------------------------------------------------

# Content-Type: multipart/report; report-type="delivery-status"; boundary="------------060100020300020303000802"
# 
# --------------060100020300020303000802
# Content-Type: text/plain; charset=windows-1252; format=flowed
# Content-Transfer-Encoding: 7bit
# 
# This is an automatically generated Delivery Status Notification.
# 
# Delivery to the following recipient failed permanently:
# 
#     recipient@example.com
# 
# Technical details of permanent failure:
# DNS Error: Domain name not found
# 
# --------------060100020300020303000802
# Content-Type: message/delivery-status
# 
# Final-Recipient: rfc822; recipient@example.com
# Action: failed
# Status: 5.1.2
# Diagnostic-Code: smtp; 550 5.1.2 Host unknown (Domain name not found)
# Last-Attempt-Date: Mon, 12 May 2025 11:30:39 -0500
# 
# --------------060100020300020303000802
# Content-Type: text/rfc822-headers; charset=windows-1252
# 
# MIME-Version: 1.0
# Date: Mon, 12 May 2025 11:30:39 -0500
# Message-ID: <B8E6875D582A78AE779FC0B46ACC8C858CEAF608@SLICE>
# Content-Type: text/plain; charset=us-ascii; format=flowed
# Content-Transfer-Encoding: 7bit
# X-Priority: 3 (Normal)
# Subject: Test
# From: joe@example.com
# To: recipient@example.com
# --------------060100020300020303000802--