To: recipient@testcertificates.gov
From: sender@testcertificates.gov
Subject: Valid GeneralizedTime notBefore Date Test4
MIME-Version: 1.0
Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg="sha-256"; boundary="----12482082A6552627B243729F48864D5E"

This is an S/MIME signed message

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Content-Type: text/plain

This is a sample signed message.

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Content-Type: application/pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"

[encoded data, 4550 characters]
mSKpqy1cMhk=

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