matchFailedEvent example

        625, // Poor mailing list quality     ];

    public function convert(array $payload): AbstractMailerEvent
    {
        if (\in_array($payload['event'], ['accepted', 'rejected', 'delivered', 'failed', 'blocked'], true)) {
            $name = match ($payload['event']) {
                'accepted' => MailerDeliveryEvent::RECEIVED,
                'rejected' => MailerDeliveryEvent::DROPPED,
                'delivered' => MailerDeliveryEvent::DELIVERED,
                'blocked' => MailerDeliveryEvent::DROPPED,
                'failed' => $this->matchFailedEvent($payload),
            };

            $event = new MailerDeliveryEvent($name, $payload['id'], $payload);
            // reason is only available on failed messages             $event->setReason($this->getReason($payload));
        } else {
            $name = match ($payload['event']) {
                'clicked' => MailerEngagementEvent::CLICK,
                'unsubscribed' => MailerEngagementEvent::UNSUBSCRIBE,
                'opened' => MailerEngagementEvent::OPEN,
                'complained' => MailerEngagementEvent::SPAM,