PHP Extension

GMail SMTP Send using Previously Obtained OAuth2 Access Token

See more GMail SMTP/IMAP/POP Examples

Demonstrates how to send email using GMail and OAuth2 authentication. This example assumes an OAuth2 access token was previously obtained. PHP Extension

<?php

include("chilkat.php");

$success = false;

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

// See Get GMail SMTP Access Token 
// for sample code showing how to obtain a GMail SMTP access token for desktop apps.

// In this example, our access token was previously saved to the following file which contains JSON like this:
// 	{
// 	 "access_token": "ya39.Ci-XA_C5bGgRDC3UaD-h0_NeL-DVIQnI2gHtBBBHkZzrwlARkwX6R3O0PCDEzRlfaQ",
// 	 "token_type": "Bearer",
// 	 "expires_in": 3600,
// 	 "refresh_token": "1/r_2c_7jddspcdfesrrfKqfXtqo08D6Q-gUU0DsdfVMsx0c"
// 	}
// 
$json = new CkJsonObject();
$success = $json->LoadFile('qa_data/tokens/_gmailSmtp.json');
if ($success != true) {
    print 'Failed to load GMail access token file.' . "\n";
    exit;
}

$accessToken = $json->stringOf('access_token');

$mailman = new CkMailMan();

// Set the properties for the GMail SMTP server:
$mailman->put_SmtpHost('smtp.gmail.com');
$mailman->put_SmtpPort(587);
$mailman->put_StartTLS(true);

// The SMTP username should be the GMail address of the user's account that authorized your app to send email.
$mailman->put_SmtpUsername('chilkat.support@gmail.com');
$mailman->put_OAuth2AccessToken($accessToken);

// 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('Chilkat <chilkat.support@gmail.com>');
$email->AddTo('Chilkat Admin','admin@chilkatsoft.com');
// To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

// Call SendEmail to connect to the SMTP server and send.
// The connection (i.e. session) to the SMTP server remains
// open so that subsequent SendEmail calls may use the
// same connection.  
$success = $mailman->SendEmail($email);
if ($success != true) {
    print $mailman->lastErrorText() . "\n";
    exit;
}

// You may close the connection here.  If the connection is kept open, 
// the next call to mailman.SendEmail will continue using the already-established connection
// (and automatically re-connect if needed).
$success = $mailman->CloseSmtpConnection();
if ($success != true) {
    print 'Connection to SMTP server not closed cleanly.' . "\n";
}

print 'Email Sent via GMail with OAuth2 authentication.' . "\n";

?>