I've received over 50 messages like this so far today, out of the blue.

Each has an attachment with an old bug-list message (see attachments).

I'm hoping that someone is looking into this, or will do so.


-----Original Message-----
From: MAILER-DAEMON@linux-tuxedo.fritz.box <MAILER-DAEMON@linux-tuxedo.fritz.box> 
Sent: Tuesday, April 16, 2019 2:24 PM
To: Drew Adams <drew.adams@oracle.com>
Subject: Undelivered Mail Returned to Sender

This is the mail system at host linux-tuxedo.fritz.box.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<steve@localhost>: mail for localhost loops back to myself