lemon-admin/resources/views/emails/templates/attachment.blade.php

<?php
    $appUrl = config('app.url');

?>

@extends('emails.layout')
@section('salutation')
    Hi {{$params['toName']}},
@endsection

@section('content')
    <p class="f-fallback" style="color: #000; font-size: 15px; padding: 0 15px; line-height: 24px; margin: .4em 0 0.1875em;">
    <?= nl2br($params['message']) ?>
    </p>
@endsection