README

A full-featured PHP client for the MailCow API with support for all MailCow endpoints.

Getting Started

Requirements

PHP 7.4+ (PHP 8.0+ recommended)
Extensions: Composer, PHP-JSON
Guzzle HTTP Client 7.5+

Installation

In the root of your project execute the following:

composer require exbil/mailcow-php-api

or add this to your composer.json file:

{
    "require": {
        "exbil/mailcow-php-api": "^0.15.0"
    }
}

Then perform the installation:

composer install --no-dev

Usage

Search for the API Documentation here or your own mailcow instance via https://domain.com/api.
You need an API Key which can be found in your self-hosted instance within the admin dashboard.

Basic Example

<?php
require_once 'vendor/autoload.php';

use Exbil\MailCowAPI;

// Create API client with default settings
$client = new MailCowAPI('https://mailcow.example.com', 'YOUR_API_KEY');

// Perform requests
$domains = $client->domains()->getDomains();
var_dump($domains);

Advanced Configuration

SSL Verification

By default, SSL certificates are verified. For development environments with self-signed certificates:

// Disable SSL verification (NOT recommended for production!)
$client = new MailCowAPI(
    'https://mailcow.local', 
    'YOUR_API_KEY',
    null,    // HTTP client (null = default)
    false    // Disable SSL verification
);

Custom Timeout

The default timeout is 120 seconds. You can customize it:

// Set custom timeout (in seconds)
$client = new MailCowAPI(
    'https://mailcow.example.com',
    'YOUR_API_KEY',
    null,    // HTTP client
    true,    // Verify SSL
    60       // 60 seconds timeout
);

Custom HTTP Client

Inject your own Guzzle client for advanced configurations:

use GuzzleHttp\Client;

$httpClient = new Client([
    'timeout' => 30,
    'proxy' => 'http://proxy.example.com:8080',
    // ... other Guzzle options
]);

$client = new MailCowAPI(
    'https://mailcow.example.com',
    'YOUR_API_KEY',
    $httpClient
);

Environment-Based Configuration

// Recommended: Use environment variables
$client = new MailCowAPI(
    getenv('MAILCOW_URL'),
    getenv('MAILCOW_API_KEY'),
    null,
    getenv('APP_ENV') === 'production'  // Only verify SSL in production
);

Available API Endpoints

The client supports all MailCow API endpoints through dedicated handler classes:

$client->domains()          // Domain management
$client->mailBoxes()        // Mailbox operations
$client->aliases()          // Alias management
$client->antiSpam()         // Anti-spam settings
$client->dkim()             // DKIM configuration
$client->fail2ban()         // Fail2Ban management
$client->quarantine()       // Quarantine operations
$client->logs()             // Log access
$client->status()           // System status
$client->queueManager()     // Mail queue management
$client->routing()          // Routing configuration
$client->oAuth()            // OAuth clients
$client->resources()        // Resource management
$client->appPasswords()     // App-specific passwords
$client->fwdhosts()         // Forward hosts
$client->ratelimits()       // Rate limiting
$client->domainAdmin()      // Domain admin management
$client->addressRewrite()   // Address rewriting rules
$client->tlsPolicy()        // TLS policy management
$client->SSO()              // Single Sign-On
$client->CORS()             // CORS configuration
$client->IdentityProvider() // Identity provider settings

Example Operations

// Get all domains
$domains = $client->domains()->getDomains();

// Create a new mailbox
$client->mailBoxes()->create([
    'local_part' => 'user',
    'domain' => 'example.com',
    'password' => 'securePassword123',
    'quota' => 2048
]);

// Get system status
$status = $client->status()->get();

// View logs
$logs = $client->logs()->get('mailcow', 100);

Constructor Parameters

new MailCowAPI(
    string $url,                    // Required: MailCow instance URL
    string $token,                  // Required: API token
    ?Client $httpClient = null,     // Optional: Custom Guzzle client
    bool $verifySSL = true,         // Optional: Verify SSL certificates
    int $timeout = 120              // Optional: Request timeout in seconds
);

Security Best Practices

✅ Always enable SSL verification in production (verifySSL = true)
✅ Store API keys in environment variables, not in code
✅ Use HTTPS URLs for your MailCow instance
✅ Rotate API keys regularly
⚠️ Only disable SSL verification in trusted development environments

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the GPL-3.0-or-later License.

exbil/mailcow-php-api

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