> From: Robert Boyer <robertstephenboyer@gmail.com>
> Date: Sun, 18 Feb 2024 13:14:27 -0600
> Cc: 69250@debbugs.gnu.org
>
> > Please tell more: what exactly happened when you tried each one of the
> > options, and what were your steps of trying them.
>
> I think that what's below was sent because report-emacs-bug is now defaulting, probably to the 'transport'
> option. How do I now try to see and use the other options? That is, how do I now turn off the 'defaulting'?
>
> Auto-Submitted: auto-replied
> From: Mail Delivery System <Mailer-Daemon@penguin>
> To: robertstephenboyer@penguin
> Content-Type: multipart/report; report-type=delivery-status; boundary=1708283349-eximdsn-1677957650
> Subject: Mail delivery failed: returning message to sender
> Date: Sun, 18 Feb 2024 13:09:09 -0600
>
> 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:
>
> bug-gnu-emacs@gnu.org
> Mailing to remote domains not supported
Sounds like some problem with your email setup.