[ 'domain' => env('MAILGUN_DOMAIN'), 'secret' => env('MAILGUN_SECRET'), 'endpoint' => env('MAILGUN_ENDPOINT', 'api.mailgun.net'), 'scheme' => 'https', ], 'postmark' => [ 'token' => env('POSTMARK_TOKEN'), ], 'ses' => [ 'key' => env('AWS_ACCESS_KEY_ID'), 'secret' => env('AWS_SECRET_ACCESS_KEY'), 'region' => env('AWS_DEFAULT_REGION', 'us-east-1'), ], 'onesignal' => [ 'app_id' => env('ONESIGNAL_APP_ID'), 'rest_api_key' => env('ONESIGNAL_REST_API_KEY'), 'guzzle_client_timeout' => env('ONESIGNAL_GUZZLE_CLIENT_TIMEOUT', 0), ], ];