SMTP-релей

import nodemailer from "nodemailer";

const transporter = nodemailer.createTransport({
  host: "smtp.mail.synapsea.agency",
  port: 587,
  secure: false,           // true для порта 465
  auth: {
    user: "api",
    pass: process.env.SYNAPSEA_API_KEY,
  },
});

await transporter.sendMail({
  from: '"Shop" <noreply@example.ru>',
  to: "user@example.com",
  subject: "Order confirmed",
  html: "<h1>Спасибо!</h1>",
});

EMAIL_BACKEND = "django.core.mail.backends.smtp.EmailBackend"
EMAIL_HOST = "smtp.mail.synapsea.agency"
EMAIL_PORT = 587
EMAIL_USE_TLS = True
EMAIL_HOST_USER = "api"
EMAIL_HOST_PASSWORD = os.environ["SYNAPSEA_API_KEY"]
DEFAULT_FROM_EMAIL = "noreply@example.ru"

MAIL_MAILER=smtp
MAIL_HOST=smtp.mail.synapsea.agency
MAIL_PORT=587
MAIL_USERNAME=api
MAIL_PASSWORD=sm_live_...
MAIL_ENCRYPTION=tls
MAIL_FROM_ADDRESS=noreply@example.ru
MAIL_FROM_NAME="${APP_NAME}"

$mail = new PHPMailer(true);
$mail->isSMTP();
$mail->Host = 'smtp.mail.synapsea.agency';
$mail->SMTPAuth = true;
$mail->Username = 'api';
$mail->Password = $_ENV['SYNAPSEA_API_KEY'];
$mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
$mail->Port = 587;

$mail->setFrom('noreply@example.ru', 'Shop');
$mail->addAddress('user@example.com');
$mail->Subject = 'Hello';
$mail->Body = '<h1>Привет!</h1>';
$mail->isHTML(true);
$mail->send();