PHP

Auto-Generate or Explicitly Specify the Message-ID Email Header

Demonstrates how to auto-generate or explicitly specify the Message-ID header field. Chilkat2 PHP

<?php

use Chilkat2\Email;
use Chilkat2\MailMan;

$email = new Email();

$email->Subject = 'test';
$email->Body = 'test';
$email->AddTo('Joe', 'joe@example1.com');
$email->From = 'mary@example2.com';

$mailman = new MailMan();

// When the mailman sends email, it renders the email to be sent,
// and then sends the rendered MIME.

// Instead of actually sending the email, this example will render
// to MIME so we can see what would be sent..

// We can explicitly set the Message-ID like this:
$mailman->AutoGenMessageId = false;
$email->AddHeaderField('Message-ID', '<xyz123@abc>');

$mimeStr = $mailman->RenderToMime($email);
echo $mimeStr, "\n";

// This is what we get:

// MIME-Version: 1.0
// Date: Mon, 20 Jul 2020 17:20:09 -0500
// Message-ID: <xyz123@abc>
// Content-Type: text/plain; charset=us-ascii; format=flowed
// Content-Transfer-Encoding: 7bit
// X-Priority: 3 (Normal)
// Subject: test
// To: Joe <joe@example1.com>
// From: mary@example2.com
//
// test

echo "--------\n";

// If we auto-generate...
$mailman->AutoGenMessageId = true;
$mimeStr = $mailman->RenderToMime($email);
echo $mimeStr, "\n";

// We get this:

// MIME-Version: 1.0
// Date: Mon, 20 Jul 2020 17:21:20 -0500
// Message-ID: <04EDE096BBFE484967F6398A973B0FCF6EA09A44@CHILKATSLICE>
// Content-Type: text/plain; charset=us-ascii; format=flowed
// Content-Transfer-Encoding: 7bit
// X-Priority: 3 (Normal)
// Subject: test
// To: Joe <joe@example1.com>
// From: mary@example2.com
//
// test