From: Alice Sender <alice@example.com>
To: Bob Recipient <bob@example.org>,
 Carol Third <carol@example.net>,
 Dave Fourth <dave@example.net>
Subject: Test message 003 - folded headers with
 continuation on second line
Date: Thu, 01 Jan 2026 12:00:00 +0000
Message-ID: <test-003@example.com>
MIME-Version: 1.0
Content-Type: text/plain;
	charset=utf-8
X-Custom-Header: first-value;
 second-value;
 third-value

Body of message with folded headers above.
