Subject: Mail delivery failed: returning message to sender

From: Mail Delivery System <[email-masked]>
Date: Mon, 09 Mar 2020 17:45:25 -0400

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  [email-masked]
    Unrouteable address

------ This is a copy of the message, including all the headers. ------

From: Jan Nieuwenhuizen <[email-masked]>
To: [email-masked]
Subject: hello!
Date: Mon, 09 Mar 2020 22:45:14 +0100

Hi,

I just replied to the confirmation mail.

To subscribe, I sent a mail to [email-masked]; nice.

--=20
Jan Nieuwenhuizen <[email-masked]> | GNU LilyPond http://lilypond.org
Freelance IT http://JoyofSource.com | Avatar=C2=AE http://AvatarAcademy.com