<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace KTXM\ProviderImap\Smtp;

enum ConnectionSecurity: string
{
    case Plain = 'plain';
    case Tls = 'tls';        // implicit TLS (SMTPS, port 465)
    case StartTls = 'starttls';

    public function transport(): string
    {
        return $this === self::Tls ? 'ssl' : 'tcp';
    }
}