Santiago net email header

Here is an example of an email header for a message sent from Santiago, Chile:

Delivered-To: [email protected]
Received: from mx1.example.com (mx1.example.com [198.51.100.1])
    by mx2.example.com (mx2.example.com [198.51.100.2]) with ESMTP id 123456
    for <[email protected]>; Fri, 12 Mar 2021 14:30:00 -0300 (CLST)
Received: from [2001:4860:4860::8888] (unknown [2001:4860:4860::8888])
    by mx1.example.com (mx1.example.com [198.51.100.1]) with ESMTP id 123456
    for <[email protected]>; Fri, 12 Mar 2021 14:30:00 -0300 (CLST)
From: "John Doe" <[email protected]>
To: [email protected]
Subject: Test email from Santiago
Date: Fri, 12 Mar 2021 14:30:00 -0300 (CLST)
Message-ID: <[email protected]>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit

Here's a breakdown of the header fields:

Note that the Received header fields may vary depending on the email server and network infrastructure used to deliver the email.