PHP

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. Chilkat2 PHP

<?php

use Chilkat2\Email;
use Chilkat2\JsonObject;
use Chilkat2\MailMan;

// 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 JsonObject();
try {
    $json->LoadFile('qa_data/tokens/_gmailSmtp.json');
} catch (\Chilkat2\Exception $e) {
    echo "Failed to load GMail access token file.\n";
    exit;
}

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

$mailman = new MailMan();

// Set the properties for the GMail SMTP server:
$mailman->SmtpHost = 'smtp.gmail.com';
$mailman->SmtpPort = 587;
$mailman->StartTLS = true;

// The SMTP username should be the GMail address of the user's account that authorized your app to send email.
$mailman->SmtpUsername = 'chilkat.support@gmail.com';
$mailman->OAuth2AccessToken = $accessToken;

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

$email->Subject = 'This is a test';
$email->Body = 'This is a test';
$email->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.
try {
    $mailman->SendEmail($email);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\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).
try {
    $mailman->CloseSmtpConnection();
} catch (\Chilkat2\Exception $e) {
    echo "Connection to SMTP server not closed cleanly.\n";
}

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