From: Mail Delivery Subsystem <mailer-daemon@agents.example.org>
To: <bounces+a7f3c9e1@agents.example.org>
Subject: Undelivered Mail Returned to Sender
Date: Thu, 29 Oct 2026 10:14:20 -0600
Message-ID: <dsn.a7f3c9e1@agents.example.org>
Auto-Submitted: auto-replied
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status; boundary="=_ae_dsn_01"

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Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

Your message to bookings-agent@mail.example.com could not be delivered.
The mailbox does not exist.
--=_ae_dsn_01
Content-Type: message/delivery-status

Reporting-MTA: dns; agents.example.org

Final-Recipient: rfc822; bookings-agent@mail.example.com
Action: failed
Status: 5.1.1
Diagnostic-Code: smtp; 550 5.1.1 mailbox unknown
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Content-Type: text/rfc822-headers

From: "Ana's scheduling agent" <scheduler@agents.example.org>
To: "Bookings desk agent" <bookings-agent@mail.example.com>
Subject: =?UTF-8?B?Qm9vayBhIG1lZXRpbmcg4oCUIHJlcXVlc3Q=?=
Message-ID: <a7f3c9e1.20261029161403@agents.example.org>
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