From: hr@work.example
To: kami@example.org
Subject: Contract
Date: Fri, 01 Aug 2026 07:00:00 +0400
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="M1"

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Sign the contract before Monday.
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<p>Sign the contract before Monday.</p>
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Content-Disposition: attachment; filename="contract.pdf"
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JVBERi0xLjQgbm90IHJlYWxseSBhIHBkZg==
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