From: Maya Chen <maya@brightside.example>
To: Sam Rivera <sam@meridiansupply.example>
Subject: A body line starting with From (SAMPLE)
Date: Sat, 07 Feb 2026 09:20:00 -0800
Message-ID: <p7-cte-qp-fromline@brightside.example>
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable

Sam,

The two lines below are what break naive mailbox splitters and SMTP clients=
:
=46rom here on the quoted price is fixed until 30 Jun 2026.
=2E
That lone dot is the SMTP end-of-data marker in its raw form.

Maya