<?php

namespace App\SendingServers\Identities;

/**
 * Discriminator for the two identity granularities Acelle supports.
 *
 * Vendors disagree: SES lists email + domain in a single `ListIdentities`
 * response (discriminate by `@`); SendGrid + Postmark have separate APIs;
 * Mailgun / SparkPost / ElasticEmail are domain-only. We model them
 * uniformly with this enum and let drivers map their wire shapes onto it.
 */
enum IdentityKind: string
{
    case EMAIL  = 'email';
    case DOMAIN = 'domain';
}