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MIME-Version: 1.0↩
Date: Mon, 26 Jan 2026 14:38:03 +0000↩
From: Alice@example.com↩
To: Bob@example.com↩
Subject: opaque-signed html sig.SHA256↩
Content-Type: application/pkcs7-mime; name=smime.p7m;↩
smime-type=signed-data↩
Content-Transfer-Encoding: base64↩
Content-Disposition: attachment; filename=smime.p7m↩
Content-Description: S/MIME Cryptographic Signature↩
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