Subject: [Postmaster] Email Delivery Failure
Message-Id: <111195647-1608276241173@example.com>
Date: Fri, 18 Dec 2020 09:24:01 +0200
From: "Mail Delivery System" <mailer-daemon@example.com>
To: "dns-operations" <dns-operations-bounces@example.net>
X-Mimecast-Originator: <>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by example.net id 0BI7O1sk026573

This is a delivery failure notification message indicating that
an email dns-operations-bounces@example.net addressed to email address :
-- user@example.com

With subject Re: [dns-operations] Monitoring for impending expiration of domains? sent on the Mon, 14 Dec 2020 11:30:37 +0100 (CET)
could not be delivered. The problem appears to be :
-- Recipient server unavailable or busy

Additional information follows :
-- 4.4.4 Temporary server error. Please try again later ATTR5 [VE1EUR02FT049.eop-EUR02.prod.protection.outlook.com]

This condition occurred after 30 attempt(s) to deliver over
a period of 92 hour(s) and 52 minute(s).

If you sent the email to multiple recipients, you will receive one
of these messages for each one which failed delivery,  otherwise
they have been sent.