(PHP Extension) SMTP XOAUTH2 Authentication

Demonstrates how to authenticate using an OAuth2 access token. This example assumes you have already obtained the access token and now wish to use it in an SMTP session.

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<?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");

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$oauth2_access_token = 'some_previously_obtained_token';

$mailman = new CkMailMan();

// Set the properties for the SMTP server, whatever they may be..
$mailman->put_SmtpHost('smtp.example.com');
$mailman->put_SmtpPort(587);
$mailman->put_StartTLS(true);

$mailman->put_SmtpUsername('myLogin');
$mailman->put_OAuth2AccessToken($oauth2_access_token);

// Create a new email object
$email = new CkEmail();

$email->put_Subject('This is a test');
$email->put_Body('This is a test');
$email->put_From('Joe Example <joe@example.com>');
$email->AddTo('Chilkat Admin','admin@chilkatsoft.com');

// Connect to the server indicated by the SmtpHost property
$success = $mailman->SmtpConnect();
if ($success != true) {
    print $mailman->lastErrorText() . "\n";
    exit;
}

// Authenticate using XOAUTH2 (using the OAuth2AccessToken)
$success = $mailman->SmtpAuthenticate();
if ($success != true) {
    print $mailman->lastErrorText() . "\n";
    exit;
}

$success = $mailman->SendEmail($email);
if ($success != true) {
    print $mailman->lastErrorText() . "\n";
    exit;
}

print 'Email sent.' . "\n";

$mailman->CloseSmtpConnection();

?>