README

A lightweight Symfony Mailer transport for Laravel that delivers mail via ZeptoMail’s HTTP API (no SMTP). It plugs into Laravel’s mailers and supports CC/BCC/Reply-To, attachments & inline (CID) images, single & batch sending, template sending (single & batch), custom MIME headers, open/click tracking flags, and a client reference. Under the hood it uses Laravel’s Http client, so you can Http::fake() in tests.

Requirements

PHP 8.1+
Laravel 9.x / 10.x / 11.x (Symfony Mailer)
Outbound HTTPS and TLS 1.2 available
A ZeptoMail account & API key (use the correct region endpoint, e.g. .com or .eu)

Installation

Install via Composer:

composer require brunocfalcao/laravel-zeptomail-driver

If you don’t use package discovery, register the provider manually:

// config/app.php
'providers' => [
    // ...
    Brunocfalcao\ZeptoMailApiDriver\ZeptoMailApiDriverServiceProvider::class,
],

Configuration

1) Environment

# .env
MAIL_MAILER=zeptomail
MAIL_FROM_ADDRESS=hello@yourdomain.com
MAIL_FROM_NAME="Your App"

# Driver secret
ZEPTOMAIL_MAIL_KEY=your-zeptomail-api-key

# Region endpoint (pick the one for your account):
ZEPTO_MAIL_ENDPOINT=https://api.zeptomail.com
# ZEPTO_MAIL_ENDPOINT=https://api.zeptomail.eu

# Optional tuning
ZEPTO_MAIL_TIMEOUT=30
ZEPTO_MAIL_RETRIES=2
ZEPTO_MAIL_RETRY_MS=200

# Optional defaults
ZEPTO_MAIL_TEMPLATE_KEY=           # or ZEPTO_MAIL_TEMPLATE_ALIAS=
ZEPTO_MAIL_BOUNCE_ADDRESS=         # templates API only
ZEPTO_MAIL_TRACK_OPENS=false
ZEPTO_MAIL_TRACK_CLICKS=false
ZEPTO_MAIL_CLIENT_REFERENCE=
ZEPTO_MAIL_FORCE_BATCH=false

The service provider reads config('services.zeptomail.mail_key') and falls back to env('ZEPTOMAIL_MAIL_KEY').

2) `config/services.php`

// config/services.php (excerpt)
return [
    // ...
    'zeptomail' => [
        // Primary: configure here. Fallback: env('ZEPTOMAIL_MAIL_KEY')
        'mail_key'        => env('ZEPTOMAIL_MAIL_KEY'),

        // Use .eu if your account lives in the EU region
        'endpoint'        => env('ZEPTO_MAIL_ENDPOINT', 'https://api.zeptomail.com'),

        // HTTP client tuning
        'timeout'         => env('ZEPTO_MAIL_TIMEOUT', 30),
        'retries'         => env('ZEPTO_MAIL_RETRIES', 2),
        'retry_sleep_ms'  => env('ZEPTO_MAIL_RETRY_MS', 200),

        // Optional defaults for convenience
        'template_key'    => env('ZEPTO_MAIL_TEMPLATE_KEY'),
        'template_alias'  => env('ZEPTO_MAIL_TEMPLATE_ALIAS'),
        'bounce_address'  => env('ZEPTO_MAIL_BOUNCE_ADDRESS'),
        'track_opens'     => env('ZEPTO_MAIL_TRACK_OPENS', false),
        'track_clicks'    => env('ZEPTO_MAIL_TRACK_CLICKS', false),
        'client_reference'=> env('ZEPTO_MAIL_CLIENT_REFERENCE'),
        'force_batch'     => env('ZEPTO_MAIL_FORCE_BATCH', false),
    ],
];

3) `config/mail.php`

// config/mail.php (excerpt)
return [
    'default' => env('MAIL_MAILER', 'smtp'),

    'mailers' => [
        'smtp' => [
            'transport' => 'smtp',
            // ...
        ],

        'zeptomail' => [
            'transport' => 'zeptomail', // registered by the ServiceProvider
        ],
    ],

    'from' => [
        'address' => env('MAIL_FROM_ADDRESS', 'hello@example.com'),
        'name'    => env('MAIL_FROM_NAME', 'Example'),
    ],
];

Usage

You can use this transport like any other Laravel mailer.

Single email (default)

use Illuminate\Support\Facades\Mail;
use App\Mail\InvoiceReady;

Mail::to('a@example.com')->send(new InvoiceReady());
// -> POST /v1.1/email

Select the mailer per send

Mail::mailer('zeptomail')->to('a@example.com')->send(new InvoiceReady());

CC / BCC / Reply-To

Mail::mailer('zeptomail')->send(
    (new App\Mail\SimpleMessage)
        ->to('to@example.com')
        ->cc(['cc1@example.com', 'cc2@example.com'])
        ->bcc('audit@example.com')
        ->replyTo('reply@example.com')
);

Attachments & Inline (CID) images

// App\Mail\ReportMail
public function build()
{
    $cid = $this->embed(public_path('img/logo.png')); // <img src="cid:{{ $cid }}">
    return $this->subject('Monthly Report')
        ->view('emails.report', compact('cid'))
        ->attach(storage_path('app/reports/monthly.pdf')); // regular attachment
}

The driver maps attachments to attachments[] and CID images to inline_images[] with cid set accordingly.

Custom MIME headers, tracking, and client reference

public function build()
{
    return $this->subject('Security Alert')
        ->view('emails.security')
        ->withSymfonyMessage(function (Symfony\Component\Mime\Email $email) {
            // Custom headers → go under Zepto's mime_headers
            $email->getHeaders()->addTextHeader('X-Custom-Header', 'abc-123');

            // Tracking flags
            $email->getHeaders()->addTextHeader('X-Zepto-Track-Opens', 'true');
            $email->getHeaders()->addTextHeader('X-Zepto-Track-Clicks', 'false');

            // Optional client reference
            $email->getHeaders()->addTextHeader('X-Zepto-Client-Reference', 'user#42-event#login');
        });
}

Batch sending (per-recipient personalization & hidden recipients)

Use batch when sending to a collection of recipients. Recipients are not visible to each other. You can also provide per-recipient merge_info.

Batch (non-template)

use Illuminate\Support\Facades\Mail;

$recipients = ['alice@example.com', 'bob@example.com', 'carol@example.com'];

$perRecipient = [
    'alice@example.com' => ['name' => 'Alice', 'tier' => 'gold'],
    'bob@example.com'   => ['name' => 'Bob',   'tier' => 'silver'],
    // carol has no specific merge vars
];

Mail::to($recipients)->send(
    (new App\Mail\PromoMail)
        ->withSymfonyMessage(function (Symfony\Component\Mime\Email $email) use ($perRecipient) {
            // Force Zepto batch endpoint
            $email->getHeaders()->addTextHeader('X-Zepto-Batch', 'true');
            // Provide per-recipient merge vars
            $email->getHeaders()->addTextHeader('X-Zepto-PerRecipient-MergeInfo', json_encode($perRecipient));
        })
);
// -> POST /v1.1/email/batch

You can globally enforce batch via services.zeptomail.force_batch=true if you prefer.

Template sending

Send using a template key or alias (single or batch). Provide global merge_info, plus per-recipient merge_info in batch.

Single template email

use Illuminate\Support\Facades\Mail;

Mail::to('jane@example.com')->send(
    (new App\Mail\Templated)
        ->withSymfonyMessage(function (Symfony\Component\Mime\Email $email) {
            // Key or alias (the driver handles either)
            $email->getHeaders()->addTextHeader('X-Zepto-Template', 'my-template-alias'); // or 'ea36f19a...'

            // Global merge vars for this email
            $email->getHeaders()->addTextHeader('X-Zepto-MergeInfo', json_encode([
                'name'       => 'Jane',
                'reset_link' => 'https://example.com/reset/xyz',
            ]));

            // Optional bounce address (templates API)
            $email->getHeaders()->addTextHeader('X-Zepto-Bounce-Address', 'bounce@bounce.example.com');
        })
);
// -> POST /v1.1/email/template

Batch template email

use Illuminate\Support\Facades\Mail;

$recipients = ['a@example.com', 'b@example.com'];

$perRecipient = [
    'a@example.com' => ['name' => 'Alice', 'coupon' => 'ALC-10'],
    'b@example.com' => ['name' => 'Bob',   'coupon' => 'BOB-15'],
];

Mail::to($recipients)->send(
    (new App\Mail\Templated)
        ->withSymfonyMessage(function (Symfony\Component\Mime\Email $email) use ($perRecipient) {
            $email->getHeaders()->addTextHeader('X-Zepto-Template', 'my-template-alias');
            $email->getHeaders()->addTextHeader('X-Zepto-Batch', 'true');
            $email->getHeaders()->addTextHeader('X-Zepto-PerRecipient-MergeInfo', json_encode($perRecipient));

            // Optional global merge vars across all recipients
            $email->getHeaders()->addTextHeader('X-Zepto-MergeInfo', json_encode([
                'product' => 'Pro Plan',
            ]));
        })
);
// -> POST /v1.1/email/template/batch

Testing with `Http::fake()`

Because this driver uses Laravel’s HTTP client, you can fake the API easily:

use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Mail;
use App\Mail\InvoiceReady;

test('sends via zeptomail', function () {
    Http::fake([
        'https://api.zeptomail.com/*' => Http::response(['data' => [['message' => 'Email request received']]], 200),
        // or match your EU endpoint:
        // 'https://api.zeptomail.eu/*' => Http::response([...], 200),
    ]);

    Mail::to('test@example.com')->send(new InvoiceReady());

    Http::assertSent(function ($request) {
        return str_ends_with($request->url(), '/v1.1/email')
            && $request->method() === 'POST'
            && $request->json('subject') === 'Your invoice';
    });
});

Queues

Mailables work seamlessly on queues. Ensure your workers have the same .env values and outbound HTTPS access. If using Horizon, watch memory/timeouts on bursts of batch sends.

Troubleshooting

401 / auth errors → Verify the key and that you’re using the correct regional endpoint (.com vs .eu).
“error” in response JSON → The driver throws if the Zepto response includes an error object; check domain/sender verification and payload shape.
Inline images not showing → Ensure you embed and reference the returned cid (<img src="cid:{{ $cid }}">).
Recipients visibility → Use batch endpoints to hide recipients; single-email endpoint can expose them.
Rate limits / large sends → Batch endpoints support a large number of recipients per request (subject to your Zepto plan). Split very large lists and back off with retries if needed.

How it works

ZeptoMailApiDriverServiceProvider registers the zeptomail transport.
ZeptoMailTransport converts the Symfony Email into Zepto payloads and calls the correct endpoint based on headers/config:
- POST /v1.1/email (single)
- POST /v1.1/email/batch (batch)
- POST /v1.1/email/template (template single)
- POST /v1.1/email/template/batch (template batch)

It also maps: from/to/cc/bcc/reply-to, subject, html/text, attachments, inline images, mime_headers, tracking flags, client_reference, and (for templates) merge_info & optional bounce_address.

Changelog

See CHANGELOG.

Contributing

PRs are welcome. If you add fields, please link the specific Zepto docs section in your PR description and include tests with Http::fake().

Security

Keep secrets in .env. Rotate API keys periodically. Consider setting a dedicated bounce address when using template APIs.

License

The MIT License (MIT). See LICENSE for details.

brunocfalcao / laravel-zepto-mail-api-driver

Maintainers

Details

README

Requirements

Installation

Configuration

1) Environment

2) `config/services.php`

3) `config/mail.php`

Usage

Single email (default)

Select the mailer per send

CC / BCC / Reply-To

Attachments & Inline (CID) images

Custom MIME headers, tracking, and client reference

Batch sending (per-recipient personalization & hidden recipients)

Batch (non-template)

Template sending

Single template email

Batch template email

Testing with `Http::fake()`

Queues

Troubleshooting

How it works

Changelog

Contributing

Security

License

brunocfalcao / laravel-zepto-mail-api-driver

Maintainers

Details

README

Requirements

Installation

Configuration

1) Environment

2) config/services.php

3) config/mail.php

Usage

Single email (default)

Select the mailer per send

CC / BCC / Reply-To

Attachments & Inline (CID) images

Custom MIME headers, tracking, and client reference

Batch sending (per-recipient personalization & hidden recipients)

Batch (non-template)

Template sending

Single template email

Batch template email

Testing with Http::fake()

Queues

Troubleshooting

How it works

Changelog

Contributing

Security

License

2) `config/services.php`

3) `config/mail.php`

Testing with `Http::fake()`