Send PHP / Symfony mail through SecureSMTP

Set up in under five minutes

Same flow for every integration: account → credentials → paste into PHP / Symfony → test send.

1. 1

   Create a free SecureSMTP account

   Sign up at securessmtp.com/signup. Free tier covers 100 emails/month — no card required.

2. 2

   Create an API key

   Dashboard → Settings → API keys → Create. Store it in your environment (e.g. SECURESMTP_API_KEY in .env). Never commit it.

3. 3

   Install or import the SDK

   composer require securessmtp/php-sdk · or use PHPMailer / Symfony Mailer pointed at our SMTP host.

4. 4

   Make your first send

   Copy the snippet below into a server-side endpoint or background job. Replace the to/subject/html with your own values.

5. 5

   Test, then ship

   Trigger your endpoint in dev. Check the dashboard activity feed to confirm the send. Ship to prod — same code, no config swap.

<?php
// composer require symfony/mailer
use Symfony\Component\Mailer\Mailer;
use Symfony\Component\Mailer\Transport;
use Symfony\Component\Mime\Email;

$dsn = 'smtp://USERNAME:PASSWORD@smtp.securessmtp.com:587';
$mailer = new Mailer(Transport::fromDsn($dsn));

$mailer->send((new Email())
    ->from('site@yourdomain.com')
    ->to('you@yourdomain.com')
    ->subject('Contact')
    ->html($_POST['message']));

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