From: David Bremner <david@tethera.net>
To: example@example.com
Subject: attachment content type
Date: Thu, 05 Jan 2023 08:02:36 -0400
Message-ID: <871qo9p4tf.fsf@tethera.net>
MIME-Version: 1.0
Content-Type: application/pdf
Content-Disposition: attachment; filename=fake.pdf
Content-Transfer-Encoding: base64

dGhpcyBpcyBub3QgcmVhbGx5IFBERgo=