Message 1
From: Ahmed Example <ahmed@example.net>
To: Emma Smith <emma@example.com>
Subject: INVOICE 2026-118: could you take another look?

Message 2
From: Example Wholesale <news@example.org>
To: emma@example.com
Subject: Your invoice and the new spring collection
List-Id: Newsletter Example Wholesale <nieuws.example.org>

Message 3
From: Tom <tom@example.com>
To: Emma Smith <emma@example.com>
Subject: Saturday schedule

Message 4
From: Ahmed Example <ahmed@example.net>
To: info@example.com
Subject: Question about the flower arrangement for Friday