To: recipient@testcertificates.gov
From: sender@testcertificates.gov
Subject: Invalid keyUsage Not Critical keyCertSign False Test2
MIME-Version: 1.0
Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg="sha-256"; boundary="----7673076145E4BC2F87C02AAC2845CDCB"

This is an S/MIME signed message

------7673076145E4BC2F87C02AAC2845CDCB
Content-Type: text/plain

This is a sample signed message.

------7673076145E4BC2F87C02AAC2845CDCB
Content-Type: application/pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"

[encoded data, 4615 characters]
3EE6YfCpkMdxaR3xLFIuXgdaEZoJ8G3XiUv4h78=

------7673076145E4BC2F87C02AAC2845CDCB--

