To: recipient@testcertificates.gov
From: Test21EE@mailserver.testcertificates.gov
Subject: Valid RFC822 nameConstraints Test21
MIME-Version: 1.0
Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg="sha-256"; boundary="----02EF2DCEEDAA02802A2DC6C9EF5CA3F5"

This is an S/MIME signed message

------02EF2DCEEDAA02802A2DC6C9EF5CA3F5
Content-Type: text/plain

This is a sample signed message.

------02EF2DCEEDAA02802A2DC6C9EF5CA3F5
Content-Type: application/pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"

[encoded data, 4680 characters]
6hcgGNlmmw==

------02EF2DCEEDAA02802A2DC6C9EF5CA3F5--

