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(PHP Extension) Create DSN (Delivery Status Notification) Email

Demonstrates how to create a DSN (Delivery Status Notification) Email having the format as defined in RFC 3464.

Chilkat PHP Downloads

PHP Extension for Windows, Linux, MacOS,
Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

$email = new CkEmail();

// A DSN email is a report about the attempt to delivery 
// an email.  It is usually a report that indicates failure or
// or a delay in delivery.  The DSN is typically sent back to
// the sender of an email.

// IMPORTANT:
// Note: Please be careful in sending automated DSN's.
// It is important to be aware of an issue called "backscatter".
// See the Wikipedia article here:  http://en.wikipedia.org/wiki/Backscatter_%28e-mail%29

// The CreateDsn method will be called to create a new
// DSN email based upon the email object calling CreateDsn.
// The email object instance used to call CreateDsn would
// typically be an email received from a POP3 or IMAP server.
// In this case, to simplify the example, we'll load the email
// from a .eml file.

// This example will be creating a DSN for "someEmail.eml"
$success = $email->LoadEml('someEmail.eml');
if ($success != true) {
    print $email->lastErrorText() . "\n";
    exit;
}

// The DSN created by CreateDsn will contain a 
// "message/delivery-status" MIME sub-part that will
// be composed of a number of name-value pairs.
// See RFC 3464 ( http://tools.ietf.org/html/rfc3464 )
// The name-value content for this part is passed
// as XML to CreateDsn. This part of the example
// prepares the XML:
$xml = new CkXml();

// For this example, we're just adding a few name-value pairs.
// These should not be considered to be correct, required or
// even sensible -- it's simply for the example.  
$xml->put_Tag('DeliveryStatusFields');
$xml->NewChild2('Status','5.1.2 (bad destination system: no such domain)');
$xml->NewChild2('Diagnostic-Code','smtp; Permanent failure: no such domain');
$xml->NewChild2('X-BounceCategory','bad-domain');

$xmlStr = $xml->getXml();

// The last argument to be passed to CreateDsn will be a boolean
// indicating whether to include the entire MIME of the calling
// email object in the DSN, or only the header.
// It may make sense to include the entire email for small emails,
// but for large emails (with large attachments) it's probably
// best to make the DSN header-only.
$bHeaderOnly = true;

// The first argument to be passed to CreateDsn will
// be a human-readable explanation that will be placed
// into the 1st MIME part of the DSN (see RFC 3464).
$humanReadableExplanation = 'Blah blah blah. The delivery of this email failed. Blah blah blah';

// OK, we're ready to create DSN....

// dsnEmail is a CkEmail
$dsnEmail = $email->CreateDsn($humanReadableExplanation,$xmlStr,$bHeaderOnly);
if ($email->get_LastMethodSuccess() == false) {
    print $email->lastErrorText() . "\n";
    exit;
}

// Show the MIME of the source (original) email:
print $email->getMime() . "\n";

print '**************************************' . "\n";

// Show the MIME of the DSN email:
print $dsnEmail->getMime() . "\n";

// Sample output showing the MIME of the original email,
// and the DSN email created based upon it:

// X-Account-Key: account2
// X-UIDL: 0D154945439D42BD80F180F6D9DE4D82
// Received: with MailEnable Postoffice Connector;
// 	 Tue, 21 Jun 2011 09:21:23 -0400
// Received: from qmta14.emeryville.ca.mail.comcast.net ([76.96.227.212]) by chilkatsoft.com with MailEnable ESMTP;
// 	 Tue, 21 Jun 2011 09:21:22 -0400
// Received: from omta03.emeryville.ca.mail.comcast.net ([76.196.30.27]) by qmta14.emeryville.ca.mail.comcast.net with comcast id yd4k1g0050b6N64AEdLW9x;
// 	 Tue, 21 Jun 2011 13:20:30 +0000
// Received: from [127.0.0.1] ([67.175.202.103]) by omta03.emeryville.ca.mail.comcast.net with comcast id ydLV1g00n2EMkZ78PdLWxi;
// 	 Tue, 21 Jun 2011 13:20:31 +0000
// Message-ID: <4E009AA4.3090205@chilkatsoft.com>
// Date: Tue, 21 Jun 2011 08:20:36 -0500
// From: Chilkat Software <admin@chilkatsoft.com>
// User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.17) Gecko/20110414 Thunderbird/3.1.10
// MIME-Version: 1.0
// To: Chilkat Support <support@chilkatsoft.com>
// Subject: test 123
// Content-Type: text/plain; charset=ISO-8859-1; format=flowed
// Content-Transfer-Encoding: 7bit
// Return-Path: <>
// X-Antivirus: avast! (VPS 110621-0, 06/21/2011), Inbound message
// X-Antivirus-Status: Clean
// 
// This is a test 123
// 
// 
// 
// **************************************
// Content-Type: multipart/report; report-type=delivery-status;
// 	 boundary="------------070202040604030701060106"
// 
// --------------070202040604030701060106
// Content-Type: text/plain
// Content-Transfer-Encoding: 7bit
// 
// Blah blah blah. The delivery of this email failed. Blah blah blah
// --------------070202040604030701060106
// Content-Type: message/delivery-status
// 
// Status: 5.1.2 (bad destination system: no such domain)
// Diagnostic-Code: smtp; Permanent failure: no such domain
// X-BounceCategory: bad-domain
// 
// --------------070202040604030701060106
// Content-Type: text/rfc822-headers
// 
// X-Account-Key: account2
// X-UIDL: 0D154945439D42BD80F180F6D9DE4D82
// Received: with MailEnable Postoffice Connector;
// 	 Tue, 21 Jun 2011 09:21:23 -0400
// Received: from qmta14.emeryville.ca.mail.comcast.net ([76.96.227.212]) by chilkatsoft.com with MailEnable ESMTP;
// 	 Tue, 21 Jun 2011 09:21:22 -0400
// Received: from omta03.emeryville.ca.mail.comcast.net ([76.196.30.27]) by qmta14.emeryville.ca.mail.comcast.net with comcast id yd4k1g0050b6N64AEdLW9x;
// 	 Tue, 21 Jun 2011 13:20:30 +0000
// Received: from [127.0.0.1] ([67.175.202.103]) by omta03.emeryville.ca.mail.comcast.net with comcast id ydLV1g00n2EMkZ78PdLWxi;
// 	 Tue, 21 Jun 2011 13:20:31 +0000
// Message-ID: <4E009AA4.3090205@chilkatsoft.com>
// Date: Tue, 21 Jun 2011 08:20:36 -0500
// From: Chilkat Software <admin@chilkatsoft.com>
// User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.17) Gecko/20110414 Thunderbird/3.1.10
// MIME-Version: 1.0
// To: Chilkat Support <support@chilkatsoft.com>
// Subject: test 123
// Content-Type: text/plain; charset=ISO-8859-1; format=flowed
// Content-Transfer-Encoding: 7bit
// Return-Path: <>
// X-Antivirus: avast! (VPS 110621-0, 06/21/2011), Inbound message
// X-Antivirus-Status: Clean
// --------------070202040604030701060106--
// 
// 

?>

 

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