MIME-Version: 1.0
Date: Tue, 21 Nov 2023 20:50:06 +0000
From: Alice@example.com
To: Bob@example.com
Subject: BAD mismatch-econtent sig.SHA256
Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="------------ms030903020902020502030404"

This is a cryptographically signed message in MIME format.

--------------ms030903020902020502030404
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: quoted-printable
Content-Language: en-US

This is a FAKE message NOT from Alice to Bob.

--------------ms030903020902020502030404
Content-Type: application/pkcs7-signature; name=smime.p7s
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename=smime.p7s
Content-Description: S/MIME Cryptographic Signature

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--------------ms030903020902020502030404--